21708610

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{233}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 49330944

約数和(自身を除く): 27622334

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 121, 154, 233, 242, 385, 466, 605, 770, 847, 1165, 1210, 1331, 1631, 1694, 2330, 2563, 2662, 3262, 4235, 5126, 6655, 8155, 8470, 9317, 12815, 13310, 16310, 17941, 18634, 25630, 28193, 35882, 46585, 56386, 89705, 93170, 140965, 179410, 197351, 281930, 310123, 394702, 620246, 986755, 1550615, 1973510, 2170861, 3101230, 4341722, 10854305, 21708610]

約数ペア:

[(1, 21708610), (2, 10854305), (5, 4341722), (7, 3101230), (10, 2170861), (11, 1973510), (14, 1550615), (22, 986755), (35, 620246), (55, 394702), (70, 310123), (77, 281930), (110, 197351), (121, 179410), (154, 140965), (233, 93170), (242, 89705), (385, 56386), (466, 46585), (605, 35882), (770, 28193), (847, 25630), (1165, 18634), (1210, 17941), (1331, 16310), (1631, 13310), (1694, 12815), (2330, 9317), (2563, 8470), (2662, 8155), (3262, 6655), (4235, 5126)]