31979259

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2939}}^1$

素因数の和:2992

約数の個数: 32

約数和(自身を含む): 52684800

約数和(自身を除く): 20705541

約数列:

[1, 3, 9, 13, 27, 31, 39, 93, 117, 279, 351, 403, 837, 1209, 2939, 3627, 8817, 10881, 26451, 38207, 79353, 91109, 114621, 273327, 343863, 819981, 1031589, 1184417, 2459943, 3553251, 10659753, 31979259]

約数ペア:

[(1, 31979259), (3, 10659753), (9, 3553251), (13, 2459943), (27, 1184417), (31, 1031589), (39, 819981), (93, 343863), (117, 273327), (279, 114621), (351, 91109), (403, 79353), (837, 38207), (1209, 26451), (2939, 10881), (3627, 8817)]