21202708

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{1229}}^1$

素因数の和:1479

約数の個数: 24

約数和(自身を含む): 39261600

約数和(自身を除く): 18058892

約数列:

[1, 2, 4, 19, 38, 76, 227, 454, 908, 1229, 2458, 4313, 4916, 8626, 17252, 23351, 46702, 93404, 278983, 557966, 1115932, 5300677, 10601354, 21202708]

約数ペア:

[(1, 21202708), (2, 10601354), (4, 5300677), (19, 1115932), (38, 557966), (76, 278983), (227, 93404), (454, 46702), (908, 23351), (1229, 17252), (2458, 8626), (4313, 4916)]