21238422

素因数分解:

$2^1\times 3^1\times {\mathrm{647}}^1\times {\mathrm{5471}}^1$

素因数の和:6123

約数の個数: 16

約数和(自身を含む): 42550272

約数和(自身を除く): 21311850

約数列:

[1, 2, 3, 6, 647, 1294, 1941, 3882, 5471, 10942, 16413, 32826, 3539737, 7079474, 10619211, 21238422]

約数ペア:

[(1, 21238422), (2, 10619211), (3, 7079474), (6, 3539737), (647, 32826), (1294, 16413), (1941, 10942), (3882, 5471)]