21452810

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2381}}^1$

素因数の和:2458

約数の個数: 32

約数和(自身を含む): 41675472

約数和(自身を除く): 20222662

約数列:

[1, 2, 5, 10, 17, 34, 53, 85, 106, 170, 265, 530, 901, 1802, 2381, 4505, 4762, 9010, 11905, 23810, 40477, 80954, 126193, 202385, 252386, 404770, 630965, 1261930, 2145281, 4290562, 10726405, 21452810]

約数ペア:

[(1, 21452810), (2, 10726405), (5, 4290562), (10, 2145281), (17, 1261930), (34, 630965), (53, 404770), (85, 252386), (106, 202385), (170, 126193), (265, 80954), (530, 40477), (901, 23810), (1802, 11905), (2381, 9010), (4505, 4762)]