19927908

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:127

約数の個数: 216

約数和(自身を含む): 69713280

約数和(自身を除く): 49785372

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 13, 14, 18, 21, 22, 26, 28, 33, 36, 39, 42, 44, 49, 52, 63, 66, 77, 78, 79, 84, 91, 98, 99, 117, 126, 132, 143, 147, 154, 156, 158, 182, 196, 198, 231, 234, 237, 252, 273, 286, 294, 308, 316, 364, 396, 429, 441, 462, 468, 474, 539, 546, 553, 572, 588, 637, 693, 711, 819, 858, 869, 882, 924, 948, 1001, 1027, 1078, 1092, 1106, 1274, 1287, 1386, 1422, 1617, 1638, 1659, 1716, 1738, 1764, 1911, 2002, 2054, 2156, 2212, 2548, 2574, 2607, 2772, 2844, 3003, 3081, 3234, 3276, 3318, 3476, 3822, 3871, 4004, 4108, 4851, 4977, 5148, 5214, 5733, 6006, 6083, 6162, 6468, 6636, 7007, 7189, 7644, 7742, 7821, 9009, 9243, 9702, 9954, 10428, 11297, 11466, 11613, 12012, 12166, 12324, 14014, 14378, 15484, 15642, 18018, 18249, 18486, 19404, 19908, 21021, 21567, 22594, 22932, 23226, 24332, 28028, 28756, 31284, 33891, 34839, 36036, 36498, 36972, 42042, 42581, 43134, 45188, 46452, 50323, 54747, 63063, 64701, 67782, 69678, 72996, 79079, 84084, 85162, 86268, 100646, 101673, 109494, 126126, 127743, 129402, 135564, 139356, 150969, 158158, 170324, 201292, 203346, 218988, 237237, 252252, 255486, 258804, 301938, 316316, 383229, 406692, 452907, 474474, 510972, 553553, 603876, 711711, 766458, 905814, 948948, 1107106, 1423422, 1532916, 1660659, 1811628, 2214212, 2846844, 3321318, 4981977, 6642636, 9963954, 19927908]

約数ペア:

[(1, 19927908), (2, 9963954), (3, 6642636), (4, 4981977), (6, 3321318), (7, 2846844), (9, 2214212), (11, 1811628), (12, 1660659), (13, 1532916), (14, 1423422), (18, 1107106), (21, 948948), (22, 905814), (26, 766458), (28, 711711), (33, 603876), (36, 553553), (39, 510972), (42, 474474), (44, 452907), (49, 406692), (52, 383229), (63, 316316), (66, 301938), (77, 258804), (78, 255486), (79, 252252), (84, 237237), (91, 218988), (98, 203346), (99, 201292), (117, 170324), (126, 158158), (132, 150969), (143, 139356), (147, 135564), (154, 129402), (156, 127743), (158, 126126), (182, 109494), (196, 101673), (198, 100646), (231, 86268), (234, 85162), (237, 84084), (252, 79079), (273, 72996), (286, 69678), (294, 67782), (308, 64701), (316, 63063), (364, 54747), (396, 50323), (429, 46452), (441, 45188), (462, 43134), (468, 42581), (474, 42042), (539, 36972), (546, 36498), (553, 36036), (572, 34839), (588, 33891), (637, 31284), (693, 28756), (711, 28028), (819, 24332), (858, 23226), (869, 22932), (882, 22594), (924, 21567), (948, 21021), (1001, 19908), (1027, 19404), (1078, 18486), (1092, 18249), (1106, 18018), (1274, 15642), (1287, 15484), (1386, 14378), (1422, 14014), (1617, 12324), (1638, 12166), (1659, 12012), (1716, 11613), (1738, 11466), (1764, 11297), (1911, 10428), (2002, 9954), (2054, 9702), (2156, 9243), (2212, 9009), (2548, 7821), (2574, 7742), (2607, 7644), (2772, 7189), (2844, 7007), (3003, 6636), (3081, 6468), (3234, 6162), (3276, 6083), (3318, 6006), (3476, 5733), (3822, 5214), (3871, 5148), (4004, 4977), (4108, 4851)]