31831761

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 47803392

約数和(自身を除く): 15971631

約数列:

[1, 3, 13, 31, 39, 93, 113, 233, 339, 403, 699, 1209, 1469, 3029, 3503, 4407, 7223, 9087, 10509, 21669, 26329, 45539, 78987, 93899, 136617, 281697, 342277, 816199, 1026831, 2448597, 10610587, 31831761]

約数ペア:

[(1, 31831761), (3, 10610587), (13, 2448597), (31, 1026831), (39, 816199), (93, 342277), (113, 281697), (233, 136617), (339, 93899), (403, 78987), (699, 45539), (1209, 26329), (1469, 21669), (3029, 10509), (3503, 9087), (4407, 7223)]