20171871721

素因数分解:

${\mathrm{19}}^2\times {\mathrm{271}}^1\times {\mathrm{206191}}^1$

素因数の和:206500

約数の個数: 12

約数和(自身を含む): 21368089344

約数和(自身を除く): 1196217623

約数列:

[1, 19, 271, 361, 5149, 97831, 206191, 3917629, 55877761, 74434951, 1061677459, 20171871721]

約数ペア:

[(1, 20171871721), (19, 1061677459), (271, 74434951), (361, 55877761), (5149, 3917629), (97831, 206191)]