12981386

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{20347}}^1$

素因数の和:20389

約数の個数: 16

約数和(自身を含む): 21975840

約数和(自身を除く): 8994454

約数列:

[1, 2, 11, 22, 29, 58, 319, 638, 20347, 40694, 223817, 447634, 590063, 1180126, 6490693, 12981386]

約数ペア:

[(1, 12981386), (2, 6490693), (11, 1180126), (22, 590063), (29, 447634), (58, 223817), (319, 40694), (638, 20347)]