31315193

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{103}}^1\times {\mathrm{257}}^1$

素因数の和:393

約数の個数: 24

約数和(自身を含む): 39282048

約数和(自身を除く): 7966855

約数列:

[1, 7, 13, 91, 103, 169, 257, 721, 1183, 1339, 1799, 3341, 9373, 17407, 23387, 26471, 43433, 121849, 185297, 304031, 344123, 2408861, 4473599, 31315193]

約数ペア:

[(1, 31315193), (7, 4473599), (13, 2408861), (91, 344123), (103, 304031), (169, 185297), (257, 121849), (721, 43433), (1183, 26471), (1339, 23387), (1799, 17407), (3341, 9373)]