21321612

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1571}}^1$

素因数の和:1623

約数の個数: 72

約数和(自身を含む): 60081840

約数和(自身を除く): 38760228

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 29, 36, 39, 52, 58, 78, 87, 116, 117, 156, 174, 234, 261, 348, 377, 468, 522, 754, 1044, 1131, 1508, 1571, 2262, 3142, 3393, 4524, 4713, 6284, 6786, 9426, 13572, 14139, 18852, 20423, 28278, 40846, 45559, 56556, 61269, 81692, 91118, 122538, 136677, 182236, 183807, 245076, 273354, 367614, 410031, 546708, 592267, 735228, 820062, 1184534, 1640124, 1776801, 2369068, 3553602, 5330403, 7107204, 10660806, 21321612]

約数ペア:

[(1, 21321612), (2, 10660806), (3, 7107204), (4, 5330403), (6, 3553602), (9, 2369068), (12, 1776801), (13, 1640124), (18, 1184534), (26, 820062), (29, 735228), (36, 592267), (39, 546708), (52, 410031), (58, 367614), (78, 273354), (87, 245076), (116, 183807), (117, 182236), (156, 136677), (174, 122538), (234, 91118), (261, 81692), (348, 61269), (377, 56556), (468, 45559), (522, 40846), (754, 28278), (1044, 20423), (1131, 18852), (1508, 14139), (1571, 13572), (2262, 9426), (3142, 6786), (3393, 6284), (4524, 4713)]