31123287

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8581}}^1$

素因数の和:8631

約数の個数: 24

約数和(自身を含む): 49981568

約数和(自身を除く): 18858281

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 279, 403, 1209, 3627, 8581, 25743, 77229, 111553, 266011, 334659, 798033, 1003977, 2394099, 3458143, 10374429, 31123287]

約数ペア:

[(1, 31123287), (3, 10374429), (9, 3458143), (13, 2394099), (31, 1003977), (39, 798033), (93, 334659), (117, 266011), (279, 111553), (403, 77229), (1209, 25743), (3627, 8581)]