199928139

素因数分解:

$3^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1\times {\mathrm{3121}}^1$

素因数の和:3418

約数の個数: 16

約数和(自身を含む): 270340224

約数和(自身を除く): 70412085

約数列:

[1, 3, 131, 163, 393, 489, 3121, 9363, 21353, 64059, 408851, 508723, 1226553, 1526169, 66642713, 199928139]

約数ペア:

[(1, 199928139), (3, 66642713), (131, 1526169), (163, 1226553), (393, 508723), (489, 408851), (3121, 64059), (9363, 21353)]