21470774

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{457}}^1$

素因数の和:624

約数の個数: 24

約数和(自身を含む): 35201880

約数和(自身を除く): 13731106

約数列:

[1, 2, 13, 26, 139, 169, 278, 338, 457, 914, 1807, 3614, 5941, 11882, 23491, 46982, 63523, 77233, 127046, 154466, 825799, 1651598, 10735387, 21470774]

約数ペア:

[(1, 21470774), (2, 10735387), (13, 1651598), (26, 825799), (139, 154466), (169, 127046), (278, 77233), (338, 63523), (457, 46982), (914, 23491), (1807, 11882), (3614, 5941)]