20213459

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{2879}}^1$

素因数の和:2962

約数の個数: 16

約数和(自身を含む): 24883200

約数和(自身を除く): 4669741

約数列:

[1, 7, 17, 59, 119, 413, 1003, 2879, 7021, 20153, 48943, 169861, 342601, 1189027, 2887637, 20213459]

約数ペア:

[(1, 20213459), (7, 2887637), (17, 1189027), (59, 342601), (119, 169861), (413, 48943), (1003, 20153), (2879, 7021)]