2187521

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:224

約数の個数: 16

約数和(自身を含む): 2618880

約数和(自身を除く): 431359

約数列:

[1, 7, 47, 61, 109, 329, 427, 763, 2867, 5123, 6649, 20069, 35861, 46543, 312503, 2187521]

約数ペア:

[(1, 2187521), (7, 312503), (47, 46543), (61, 35861), (109, 20069), (329, 6649), (427, 5123), (763, 2867)]