21549279620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{647}}^1\times {\mathrm{13763}}^1$

素因数の和:14441

約数の個数: 72

約数和(自身を含む): 49821936192

約数和(自身を除く): 28272656572

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 647, 1210, 1294, 2420, 2588, 3235, 6470, 7117, 12940, 13763, 14234, 27526, 28468, 35585, 55052, 68815, 71170, 78287, 137630, 142340, 151393, 156574, 275260, 302786, 313148, 391435, 605572, 756965, 782870, 1513930, 1565740, 1665323, 3027860, 3330646, 6661292, 8326615, 8904661, 16653230, 17809322, 33306460, 35618644, 44523305, 89046610, 97951271, 178093220, 195902542, 391805084, 489756355, 979512710, 1077463981, 1959025420, 2154927962, 4309855924, 5387319905, 10774639810, 21549279620]

約数ペア:

[(1, 21549279620), (2, 10774639810), (4, 5387319905), (5, 4309855924), (10, 2154927962), (11, 1959025420), (20, 1077463981), (22, 979512710), (44, 489756355), (55, 391805084), (110, 195902542), (121, 178093220), (220, 97951271), (242, 89046610), (484, 44523305), (605, 35618644), (647, 33306460), (1210, 17809322), (1294, 16653230), (2420, 8904661), (2588, 8326615), (3235, 6661292), (6470, 3330646), (7117, 3027860), (12940, 1665323), (13763, 1565740), (14234, 1513930), (27526, 782870), (28468, 756965), (35585, 605572), (55052, 391435), (68815, 313148), (71170, 302786), (78287, 275260), (137630, 156574), (142340, 151393)]