21370424

素因数分解:

$2^3\times {\mathrm{239}}^1\times {\mathrm{11177}}^1$

素因数の和:11422

約数の個数: 16

約数和(自身を含む): 40240800

約数和(自身を除く): 18870376

約数列:

[1, 2, 4, 8, 239, 478, 956, 1912, 11177, 22354, 44708, 89416, 2671303, 5342606, 10685212, 21370424]

約数ペア:

[(1, 21370424), (2, 10685212), (4, 5342606), (8, 2671303), (239, 89416), (478, 44708), (956, 22354), (1912, 11177)]