21959620

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{7369}}^1$

素因数の和:7527

約数の個数: 24

約数和(自身を含む): 46431000

約数和(自身を除く): 24471380

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 7369, 14738, 29476, 36845, 73690, 147380, 1097981, 2195962, 4391924, 5489905, 10979810, 21959620]

約数ペア:

[(1, 21959620), (2, 10979810), (4, 5489905), (5, 4391924), (10, 2195962), (20, 1097981), (149, 147380), (298, 73690), (596, 36845), (745, 29476), (1490, 14738), (2980, 7369)]