21140110

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{39887}}^1$

素因数の和:39947

約数の個数: 16

約数和(自身を含む): 38771136

約数和(自身を除く): 17631026

約数列:

[1, 2, 5, 10, 53, 106, 265, 530, 39887, 79774, 199435, 398870, 2114011, 4228022, 10570055, 21140110]

約数ペア:

[(1, 21140110), (2, 10570055), (5, 4228022), (10, 2114011), (53, 398870), (106, 199435), (265, 79774), (530, 39887)]