20404657

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{9749}}^1$

素因数の和:9792

約数の個数: 16

約数和(自身を含む): 26208000

約数和(自身を除く): 5803343

約数列:

[1, 7, 13, 23, 91, 161, 299, 2093, 9749, 68243, 126737, 224227, 887159, 1569589, 2914951, 20404657]

約数ペア:

[(1, 20404657), (7, 2914951), (13, 1569589), (23, 887159), (91, 224227), (161, 126737), (299, 68243), (2093, 9749)]