21919678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{631}}^1\times {\mathrm{1579}}^1$

素因数の和:2223

約数の個数: 16

約数和(自身を含む): 35948160

約数和(自身を除く): 14028482

約数列:

[1, 2, 11, 22, 631, 1262, 1579, 3158, 6941, 13882, 17369, 34738, 996349, 1992698, 10959839, 21919678]

約数ペア:

[(1, 21919678), (2, 10959839), (11, 1992698), (22, 996349), (631, 34738), (1262, 17369), (1579, 13882), (3158, 6941)]