21279894

素因数分解:

$2^1\times 3^1\times {\mathrm{1607}}^1\times {\mathrm{2207}}^1$

素因数の和:3819

約数の個数: 16

約数和(自身を含む): 42605568

約数和(自身を除く): 21325674

約数列:

[1, 2, 3, 6, 1607, 2207, 3214, 4414, 4821, 6621, 9642, 13242, 3546649, 7093298, 10639947, 21279894]

約数ペア:

[(1, 21279894), (2, 10639947), (3, 7093298), (6, 3546649), (1607, 13242), (2207, 9642), (3214, 6621), (4414, 4821)]