21042124

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{3917}}^1$

素因数の和:4017

約数の個数: 24

約数和(自身を含む): 39493440

約数和(自身を除く): 18451316

約数列:

[1, 2, 4, 17, 34, 68, 79, 158, 316, 1343, 2686, 3917, 5372, 7834, 15668, 66589, 133178, 266356, 309443, 618886, 1237772, 5260531, 10521062, 21042124]

約数ペア:

[(1, 21042124), (2, 10521062), (4, 5260531), (17, 1237772), (34, 618886), (68, 309443), (79, 266356), (158, 133178), (316, 66589), (1343, 15668), (2686, 7834), (3917, 5372)]