21840841

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{521}}^1$

素因数の和:672

約数の個数: 16

約数和(自身を含む): 24755328

約数和(自身を除く): 2914487

約数列:

[1, 11, 37, 103, 407, 521, 1133, 3811, 5731, 19277, 41921, 53663, 212047, 590293, 1985531, 21840841]

約数ペア:

[(1, 21840841), (11, 1985531), (37, 590293), (103, 212047), (407, 53663), (521, 41921), (1133, 19277), (3811, 5731)]