21760804

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{3911}}^1$

素因数の和:4035

約数の個数: 24

約数和(自身を含む): 41404608

約数和(自身を除く): 19643804

約数列:

[1, 2, 4, 13, 26, 52, 107, 214, 428, 1391, 2782, 3911, 5564, 7822, 15644, 50843, 101686, 203372, 418477, 836954, 1673908, 5440201, 10880402, 21760804]

約数ペア:

[(1, 21760804), (2, 10880402), (4, 5440201), (13, 1673908), (26, 836954), (52, 418477), (107, 203372), (214, 101686), (428, 50843), (1391, 15644), (2782, 7822), (3911, 5564)]