21262010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{521}}^1$

素因数の和:599

約数の個数: 64

約数和(自身を含む): 48708864

約数和(自身を除く): 27446854

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 53, 55, 70, 77, 106, 110, 154, 265, 371, 385, 521, 530, 583, 742, 770, 1042, 1166, 1855, 2605, 2915, 3647, 3710, 4081, 5210, 5731, 5830, 7294, 8162, 11462, 18235, 20405, 27613, 28655, 36470, 40117, 40810, 55226, 57310, 80234, 138065, 193291, 200585, 276130, 303743, 386582, 401170, 607486, 966455, 1518715, 1932910, 2126201, 3037430, 4252402, 10631005, 21262010]

約数ペア:

[(1, 21262010), (2, 10631005), (5, 4252402), (7, 3037430), (10, 2126201), (11, 1932910), (14, 1518715), (22, 966455), (35, 607486), (53, 401170), (55, 386582), (70, 303743), (77, 276130), (106, 200585), (110, 193291), (154, 138065), (265, 80234), (371, 57310), (385, 55226), (521, 40810), (530, 40117), (583, 36470), (742, 28655), (770, 27613), (1042, 20405), (1166, 18235), (1855, 11462), (2605, 8162), (2915, 7294), (3647, 5830), (3710, 5731), (4081, 5210)]