21336008

素因数分解:

$2^3\times {\mathrm{239}}^1\times {\mathrm{11159}}^1$

素因数の和:11404

約数の個数: 16

約数和(自身を含む): 40176000

約数和(自身を除く): 18839992

約数列:

[1, 2, 4, 8, 239, 478, 956, 1912, 11159, 22318, 44636, 89272, 2667001, 5334002, 10668004, 21336008]

約数ペア:

[(1, 21336008), (2, 10668004), (4, 5334002), (8, 2667001), (239, 89272), (478, 44636), (956, 22318), (1912, 11159)]