21415970

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{57881}}^1$

素因数の和:57925

約数の個数: 16

約数和(自身を含む): 39591288

約数和(自身を除く): 18175318

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 57881, 115762, 289405, 578810, 2141597, 4283194, 10707985, 21415970]

約数ペア:

[(1, 21415970), (2, 10707985), (5, 4283194), (10, 2141597), (37, 578810), (74, 289405), (185, 115762), (370, 57881)]