21998340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:131

約数の個数: 288

約数和(自身を含む): 88058880

約数和(自身を除く): 66060540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 17, 18, 20, 21, 26, 28, 30, 34, 35, 36, 39, 42, 45, 51, 52, 60, 63, 65, 68, 70, 78, 79, 84, 85, 90, 91, 102, 105, 117, 119, 126, 130, 140, 153, 156, 158, 170, 180, 182, 195, 204, 210, 221, 234, 237, 238, 252, 255, 260, 273, 306, 315, 316, 340, 357, 364, 390, 395, 420, 442, 455, 468, 474, 476, 510, 546, 553, 585, 595, 612, 630, 663, 711, 714, 765, 780, 790, 819, 884, 910, 948, 1020, 1027, 1071, 1092, 1105, 1106, 1170, 1185, 1190, 1260, 1326, 1343, 1365, 1422, 1428, 1530, 1547, 1580, 1638, 1659, 1785, 1820, 1989, 2054, 2142, 2210, 2212, 2340, 2370, 2380, 2652, 2686, 2730, 2765, 2844, 3060, 3081, 3094, 3276, 3315, 3318, 3555, 3570, 3978, 4029, 4095, 4108, 4284, 4420, 4641, 4740, 4977, 5135, 5355, 5372, 5460, 5530, 6162, 6188, 6630, 6636, 6715, 7110, 7140, 7189, 7735, 7956, 8058, 8190, 8295, 9243, 9282, 9401, 9945, 9954, 10270, 10710, 11060, 12087, 12324, 13260, 13430, 13923, 14220, 14378, 15405, 15470, 16116, 16380, 16590, 17459, 18486, 18564, 18802, 19890, 19908, 20145, 20540, 21420, 21567, 23205, 24174, 24885, 26860, 27846, 28203, 28756, 30810, 30940, 33180, 34918, 35945, 36972, 37604, 39780, 40290, 43134, 46215, 46410, 47005, 48348, 49770, 52377, 55692, 56406, 60435, 61620, 64701, 69615, 69836, 71890, 80580, 84609, 86268, 87295, 92430, 92820, 94010, 99540, 104754, 107835, 112812, 120870, 122213, 129402, 139230, 141015, 143780, 157131, 169218, 174590, 184860, 188020, 209508, 215670, 241740, 244426, 258804, 261885, 278460, 282030, 314262, 323505, 338436, 349180, 366639, 423045, 431340, 488852, 523770, 564060, 611065, 628524, 647010, 733278, 785655, 846090, 1047540, 1099917, 1222130, 1294020, 1466556, 1571310, 1692180, 1833195, 2199834, 2444260, 3142620, 3666390, 4399668, 5499585, 7332780, 10999170, 21998340]

約数ペア:

[(1, 21998340), (2, 10999170), (3, 7332780), (4, 5499585), (5, 4399668), (6, 3666390), (7, 3142620), (9, 2444260), (10, 2199834), (12, 1833195), (13, 1692180), (14, 1571310), (15, 1466556), (17, 1294020), (18, 1222130), (20, 1099917), (21, 1047540), (26, 846090), (28, 785655), (30, 733278), (34, 647010), (35, 628524), (36, 611065), (39, 564060), (42, 523770), (45, 488852), (51, 431340), (52, 423045), (60, 366639), (63, 349180), (65, 338436), (68, 323505), (70, 314262), (78, 282030), (79, 278460), (84, 261885), (85, 258804), (90, 244426), (91, 241740), (102, 215670), (105, 209508), (117, 188020), (119, 184860), (126, 174590), (130, 169218), (140, 157131), (153, 143780), (156, 141015), (158, 139230), (170, 129402), (180, 122213), (182, 120870), (195, 112812), (204, 107835), (210, 104754), (221, 99540), (234, 94010), (237, 92820), (238, 92430), (252, 87295), (255, 86268), (260, 84609), (273, 80580), (306, 71890), (315, 69836), (316, 69615), (340, 64701), (357, 61620), (364, 60435), (390, 56406), (395, 55692), (420, 52377), (442, 49770), (455, 48348), (468, 47005), (474, 46410), (476, 46215), (510, 43134), (546, 40290), (553, 39780), (585, 37604), (595, 36972), (612, 35945), (630, 34918), (663, 33180), (711, 30940), (714, 30810), (765, 28756), (780, 28203), (790, 27846), (819, 26860), (884, 24885), (910, 24174), (948, 23205), (1020, 21567), (1027, 21420), (1071, 20540), (1092, 20145), (1105, 19908), (1106, 19890), (1170, 18802), (1185, 18564), (1190, 18486), (1260, 17459), (1326, 16590), (1343, 16380), (1365, 16116), (1422, 15470), (1428, 15405), (1530, 14378), (1547, 14220), (1580, 13923), (1638, 13430), (1659, 13260), (1785, 12324), (1820, 12087), (1989, 11060), (2054, 10710), (2142, 10270), (2210, 9954), (2212, 9945), (2340, 9401), (2370, 9282), (2380, 9243), (2652, 8295), (2686, 8190), (2730, 8058), (2765, 7956), (2844, 7735), (3060, 7189), (3081, 7140), (3094, 7110), (3276, 6715), (3315, 6636), (3318, 6630), (3555, 6188), (3570, 6162), (3978, 5530), (4029, 5460), (4095, 5372), (4108, 5355), (4284, 5135), (4420, 4977), (4641, 4740)]