217720009

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{1697}}^1$

素因数の和:1920

約数の個数: 16

約数和(自身を含む): 239621760

約数和(自身を除く): 21901751

約数列:

[1, 13, 71, 139, 923, 1697, 1807, 9869, 22061, 120487, 128297, 235883, 1566331, 3066479, 16747693, 217720009]

約数ペア:

[(1, 217720009), (13, 16747693), (71, 3066479), (139, 1566331), (923, 235883), (1697, 128297), (1807, 120487), (9869, 22061)]