21403852

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{1163}}^1$

素因数の和:1317

約数の個数: 24

約数和(自身を含む): 38719296

約数和(自身を除く): 17315444

約数列:

[1, 2, 4, 43, 86, 107, 172, 214, 428, 1163, 2326, 4601, 4652, 9202, 18404, 50009, 100018, 124441, 200036, 248882, 497764, 5350963, 10701926, 21403852]

約数ペア:

[(1, 21403852), (2, 10701926), (4, 5350963), (43, 497764), (86, 248882), (107, 200036), (172, 124441), (214, 100018), (428, 50009), (1163, 18404), (2326, 9202), (4601, 4652)]