21111698

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{4241}}^1$

素因数の和:4393

約数の個数: 16

約数和(自身を含む): 33596640

約数和(自身を除く): 12484942

約数列:

[1, 2, 19, 38, 131, 262, 2489, 4241, 4978, 8482, 80579, 161158, 555571, 1111142, 10555849, 21111698]

約数ペア:

[(1, 21111698), (2, 10555849), (19, 1111142), (38, 555571), (131, 161158), (262, 80579), (2489, 8482), (4241, 4978)]