21280802

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{277}}^1\times {\mathrm{359}}^1$

素因数の和:745

約数の個数: 16

約数和(自身を含む): 32425920

約数和(自身を除く): 11145118

約数列:

[1, 2, 107, 214, 277, 359, 554, 718, 29639, 38413, 59278, 76826, 99443, 198886, 10640401, 21280802]

約数ペア:

[(1, 21280802), (2, 10640401), (107, 198886), (214, 99443), (277, 76826), (359, 59278), (554, 38413), (718, 29639)]