21221372

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{521}}^1\times {\mathrm{599}}^1$

素因数の和:1141

約数の個数: 24

約数和(自身を含む): 39463200

約数和(自身を除く): 18241828

約数列:

[1, 2, 4, 17, 34, 68, 521, 599, 1042, 1198, 2084, 2396, 8857, 10183, 17714, 20366, 35428, 40732, 312079, 624158, 1248316, 5305343, 10610686, 21221372]

約数ペア:

[(1, 21221372), (2, 10610686), (4, 5305343), (17, 1248316), (34, 624158), (68, 312079), (521, 40732), (599, 35428), (1042, 20366), (1198, 17714), (2084, 10183), (2396, 8857)]