31917171

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 51649920

約数和(自身を除く): 19732749

約数列:

[1, 3, 11, 13, 33, 39, 59, 97, 143, 169, 177, 291, 429, 507, 649, 767, 1067, 1261, 1859, 1947, 2301, 3201, 3783, 5577, 5723, 8437, 9971, 13871, 16393, 17169, 25311, 29913, 41613, 49179, 62953, 74399, 109681, 180323, 188859, 223197, 329043, 540969, 818389, 967187, 2455167, 2901561, 10639057, 31917171]

約数ペア:

[(1, 31917171), (3, 10639057), (11, 2901561), (13, 2455167), (33, 967187), (39, 818389), (59, 540969), (97, 329043), (143, 223197), (169, 188859), (177, 180323), (291, 109681), (429, 74399), (507, 62953), (649, 49179), (767, 41613), (1067, 29913), (1261, 25311), (1859, 17169), (1947, 16393), (2301, 13871), (3201, 9971), (3783, 8437), (5577, 5723)]