21780218

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2\times {\mathrm{563}}^1$

素因数の和:646

約数の個数: 24

約数和(自身を含む): 35369568

約数和(自身を除く): 13589350

約数列:

[1, 2, 23, 29, 46, 58, 563, 667, 841, 1126, 1334, 1682, 12949, 16327, 19343, 25898, 32654, 38686, 375521, 473483, 751042, 946966, 10890109, 21780218]

約数ペア:

[(1, 21780218), (2, 10890109), (23, 946966), (29, 751042), (46, 473483), (58, 375521), (563, 38686), (667, 32654), (841, 25898), (1126, 19343), (1334, 16327), (1682, 12949)]