21581272

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{57397}}^1$

素因数の和:57450

約数の個数: 16

約数和(自身を含む): 41326560

約数和(自身を除く): 19745288

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 57397, 114794, 229588, 459176, 2697659, 5395318, 10790636, 21581272]

約数ペア:

[(1, 21581272), (2, 10790636), (4, 5395318), (8, 2697659), (47, 459176), (94, 229588), (188, 114794), (376, 57397)]