12919879

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:223

約数の個数: 24

約数和(自身を含む): 15800400

約数和(自身を除く): 2880521

約数列:

[1, 7, 41, 49, 59, 109, 287, 413, 763, 2009, 2419, 2891, 4469, 5341, 6431, 16933, 31283, 45017, 118531, 218981, 263671, 315119, 1845697, 12919879]

約数ペア:

[(1, 12919879), (7, 1845697), (41, 315119), (49, 263671), (59, 218981), (109, 118531), (287, 45017), (413, 31283), (763, 16933), (2009, 6431), (2419, 5341), (2891, 4469)]