21545155

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{1433}}^1$

素因数の和:1566

約数の個数: 16

約数和(自身を含む): 26982144

約数和(自身を除く): 5436989

約数列:

[1, 5, 31, 97, 155, 485, 1433, 3007, 7165, 15035, 44423, 139001, 222115, 695005, 4309031, 21545155]

約数ペア:

[(1, 21545155), (5, 4309031), (31, 695005), (97, 222115), (155, 139001), (485, 44423), (1433, 15035), (3007, 7165)]