20795887

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{3491}}^1$

素因数の和:3558

約数の個数: 16

約数和(自身を含む): 25477632

約数和(自身を除く): 4681745

約数列:

[1, 7, 23, 37, 161, 259, 851, 3491, 5957, 24437, 80293, 129167, 562051, 904169, 2970841, 20795887]

約数ペア:

[(1, 20795887), (7, 2970841), (23, 904169), (37, 562051), (161, 129167), (259, 80293), (851, 24437), (3491, 5957)]