20717318

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{433}}^1\times {\mathrm{509}}^1$

素因数の和:991

約数の個数: 16

約数和(自身を含む): 31872960

約数和(自身を除く): 11155642

約数列:

[1, 2, 47, 94, 433, 509, 866, 1018, 20351, 23923, 40702, 47846, 220397, 440794, 10358659, 20717318]

約数ペア:

[(1, 20717318), (2, 10358659), (47, 440794), (94, 220397), (433, 47846), (509, 40702), (866, 23923), (1018, 20351)]