21863855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{9091}}^1$

素因数の和:9146

約数の個数: 16

約数和(自身を含む): 29021664

約数和(自身を除く): 7157809

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 9091, 45455, 118183, 336367, 590915, 1681835, 4372771, 21863855]

約数ペア:

[(1, 21863855), (5, 4372771), (13, 1681835), (37, 590915), (65, 336367), (185, 118183), (481, 45455), (2405, 9091)]