21816717

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{1163}}^1$

素因数の和:1229

約数の個数: 24

約数和(自身を含む): 32377824

約数和(自身を除く): 10561107

約数列:

[1, 3, 13, 37, 39, 111, 169, 481, 507, 1163, 1443, 3489, 6253, 15119, 18759, 43031, 45357, 129093, 196547, 559403, 589641, 1678209, 7272239, 21816717]

約数ペア:

[(1, 21816717), (3, 7272239), (13, 1678209), (37, 589641), (39, 559403), (111, 196547), (169, 129093), (481, 45357), (507, 43031), (1163, 18759), (1443, 15119), (3489, 6253)]