31522257

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2897}}^1$

素因数の和:2950

約数の個数: 32

約数和(自身を含む): 51932160

約数和(自身を除く): 20409903

約数列:

[1, 3, 9, 13, 27, 31, 39, 93, 117, 279, 351, 403, 837, 1209, 2897, 3627, 8691, 10881, 26073, 37661, 78219, 89807, 112983, 269421, 338949, 808263, 1016847, 1167491, 2424789, 3502473, 10507419, 31522257]

約数ペア:

[(1, 31522257), (3, 10507419), (9, 3502473), (13, 2424789), (27, 1167491), (31, 1016847), (39, 808263), (93, 338949), (117, 269421), (279, 112983), (351, 89807), (403, 78219), (837, 37661), (1209, 26073), (2897, 10881), (3627, 8691)]