21688607

素因数分解:

${\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:322

約数の個数: 16

約数和(自身を含む): 23250240

約数和(自身を除く): 1561633

約数列:

[1, 29, 53, 103, 137, 1537, 2987, 3973, 5459, 7261, 14111, 158311, 210569, 409219, 747883, 21688607]

約数ペア:

[(1, 21688607), (29, 747883), (53, 409219), (103, 210569), (137, 158311), (1537, 14111), (2987, 7261), (3973, 5459)]