31574529

素因数分解:

$3^4\times 7^1\times {\mathrm{233}}^1\times {\mathrm{239}}^1$

素因数の和:491

約数の個数: 40

約数和(自身を含む): 54362880

約数和(自身を除く): 22788351

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 233, 239, 567, 699, 717, 1631, 1673, 2097, 2151, 4893, 5019, 6291, 6453, 14679, 15057, 18873, 19359, 44037, 45171, 55687, 132111, 135513, 167061, 389809, 501183, 1169427, 1503549, 3508281, 4510647, 10524843, 31574529]

約数ペア:

[(1, 31574529), (3, 10524843), (7, 4510647), (9, 3508281), (21, 1503549), (27, 1169427), (63, 501183), (81, 389809), (189, 167061), (233, 135513), (239, 132111), (567, 55687), (699, 45171), (717, 44037), (1631, 19359), (1673, 18873), (2097, 15057), (2151, 14679), (4893, 6453), (5019, 6291)]