21227388

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2777}}^1$

素因数の和:2811

約数の個数: 72

約数和(自身を含む): 62071632

約数和(自身を除く): 40844244

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 49, 52, 78, 84, 91, 98, 147, 156, 182, 196, 273, 294, 364, 546, 588, 637, 1092, 1274, 1911, 2548, 2777, 3822, 5554, 7644, 8331, 11108, 16662, 19439, 33324, 36101, 38878, 58317, 72202, 77756, 108303, 116634, 136073, 144404, 216606, 233268, 252707, 272146, 408219, 433212, 505414, 544292, 758121, 816438, 1010828, 1516242, 1632876, 1768949, 3032484, 3537898, 5306847, 7075796, 10613694, 21227388]

約数ペア:

[(1, 21227388), (2, 10613694), (3, 7075796), (4, 5306847), (6, 3537898), (7, 3032484), (12, 1768949), (13, 1632876), (14, 1516242), (21, 1010828), (26, 816438), (28, 758121), (39, 544292), (42, 505414), (49, 433212), (52, 408219), (78, 272146), (84, 252707), (91, 233268), (98, 216606), (147, 144404), (156, 136073), (182, 116634), (196, 108303), (273, 77756), (294, 72202), (364, 58317), (546, 38878), (588, 36101), (637, 33324), (1092, 19439), (1274, 16662), (1911, 11108), (2548, 8331), (2777, 7644), (3822, 5554)]