21184380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:105

約数の個数: 288

約数和(自身を含む): 83026944

約数和(自身を除く): 61842564

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 23, 28, 30, 34, 35, 36, 42, 43, 45, 46, 51, 60, 63, 68, 69, 70, 84, 85, 86, 90, 92, 102, 105, 115, 119, 126, 129, 138, 140, 153, 161, 170, 172, 180, 204, 207, 210, 215, 230, 238, 252, 255, 258, 276, 301, 306, 315, 322, 340, 345, 357, 387, 391, 414, 420, 430, 460, 476, 483, 510, 516, 595, 602, 612, 630, 644, 645, 690, 714, 731, 765, 774, 782, 805, 828, 860, 903, 966, 989, 1020, 1035, 1071, 1173, 1190, 1204, 1260, 1290, 1380, 1428, 1449, 1462, 1505, 1530, 1548, 1564, 1610, 1785, 1806, 1932, 1935, 1955, 1978, 2070, 2142, 2193, 2346, 2380, 2415, 2580, 2709, 2737, 2898, 2924, 2967, 3010, 3060, 3220, 3519, 3570, 3612, 3655, 3870, 3910, 3956, 4140, 4284, 4386, 4515, 4692, 4830, 4945, 5117, 5355, 5418, 5474, 5796, 5865, 5934, 6020, 6579, 6923, 7038, 7140, 7245, 7310, 7740, 7820, 8211, 8772, 8901, 9030, 9660, 9890, 10234, 10710, 10836, 10948, 10965, 11730, 11868, 13158, 13545, 13685, 13846, 14076, 14490, 14620, 14835, 15351, 16422, 16813, 17595, 17802, 18060, 19780, 20468, 20769, 21420, 21930, 23460, 24633, 25585, 26316, 27090, 27370, 27692, 28980, 29670, 30702, 32844, 32895, 33626, 34615, 35190, 35604, 41055, 41538, 43860, 44505, 46053, 49266, 50439, 51170, 54180, 54740, 59340, 61404, 62307, 65790, 67252, 69230, 70380, 76755, 82110, 83076, 84065, 89010, 92106, 98532, 100878, 102340, 103845, 117691, 123165, 124614, 131580, 138460, 151317, 153510, 164220, 168130, 178020, 184212, 201756, 207690, 230265, 235382, 246330, 249228, 252195, 302634, 307020, 311535, 336260, 353073, 415380, 460530, 470764, 492660, 504390, 588455, 605268, 623070, 706146, 756585, 921060, 1008780, 1059219, 1176910, 1246140, 1412292, 1513170, 1765365, 2118438, 2353820, 3026340, 3530730, 4236876, 5296095, 7061460, 10592190, 21184380]

約数ペア:

[(1, 21184380), (2, 10592190), (3, 7061460), (4, 5296095), (5, 4236876), (6, 3530730), (7, 3026340), (9, 2353820), (10, 2118438), (12, 1765365), (14, 1513170), (15, 1412292), (17, 1246140), (18, 1176910), (20, 1059219), (21, 1008780), (23, 921060), (28, 756585), (30, 706146), (34, 623070), (35, 605268), (36, 588455), (42, 504390), (43, 492660), (45, 470764), (46, 460530), (51, 415380), (60, 353073), (63, 336260), (68, 311535), (69, 307020), (70, 302634), (84, 252195), (85, 249228), (86, 246330), (90, 235382), (92, 230265), (102, 207690), (105, 201756), (115, 184212), (119, 178020), (126, 168130), (129, 164220), (138, 153510), (140, 151317), (153, 138460), (161, 131580), (170, 124614), (172, 123165), (180, 117691), (204, 103845), (207, 102340), (210, 100878), (215, 98532), (230, 92106), (238, 89010), (252, 84065), (255, 83076), (258, 82110), (276, 76755), (301, 70380), (306, 69230), (315, 67252), (322, 65790), (340, 62307), (345, 61404), (357, 59340), (387, 54740), (391, 54180), (414, 51170), (420, 50439), (430, 49266), (460, 46053), (476, 44505), (483, 43860), (510, 41538), (516, 41055), (595, 35604), (602, 35190), (612, 34615), (630, 33626), (644, 32895), (645, 32844), (690, 30702), (714, 29670), (731, 28980), (765, 27692), (774, 27370), (782, 27090), (805, 26316), (828, 25585), (860, 24633), (903, 23460), (966, 21930), (989, 21420), (1020, 20769), (1035, 20468), (1071, 19780), (1173, 18060), (1190, 17802), (1204, 17595), (1260, 16813), (1290, 16422), (1380, 15351), (1428, 14835), (1449, 14620), (1462, 14490), (1505, 14076), (1530, 13846), (1548, 13685), (1564, 13545), (1610, 13158), (1785, 11868), (1806, 11730), (1932, 10965), (1935, 10948), (1955, 10836), (1978, 10710), (2070, 10234), (2142, 9890), (2193, 9660), (2346, 9030), (2380, 8901), (2415, 8772), (2580, 8211), (2709, 7820), (2737, 7740), (2898, 7310), (2924, 7245), (2967, 7140), (3010, 7038), (3060, 6923), (3220, 6579), (3519, 6020), (3570, 5934), (3612, 5865), (3655, 5796), (3870, 5474), (3910, 5418), (3956, 5355), (4140, 5117), (4284, 4945), (4386, 4830), (4515, 4692)]