21206774

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{2437}}^1$

素因数の和:2687

約数の個数: 16

約数和(自身を含む): 33644400

約数和(自身を除く): 12437626

約数列:

[1, 2, 19, 38, 229, 458, 2437, 4351, 4874, 8702, 46303, 92606, 558073, 1116146, 10603387, 21206774]

約数ペア:

[(1, 21206774), (2, 10603387), (19, 1116146), (38, 558073), (229, 92606), (458, 46303), (2437, 8702), (4351, 4874)]