31180203

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 50079744

約数和(自身を除く): 18899541

約数列:

[1, 3, 9, 23, 31, 43, 69, 93, 113, 129, 207, 279, 339, 387, 713, 989, 1017, 1333, 2139, 2599, 2967, 3503, 3999, 4859, 6417, 7797, 8901, 10509, 11997, 14577, 23391, 30659, 31527, 43731, 80569, 91977, 111757, 150629, 241707, 275931, 335271, 451887, 725121, 1005813, 1355661, 3464467, 10393401, 31180203]

約数ペア:

[(1, 31180203), (3, 10393401), (9, 3464467), (23, 1355661), (31, 1005813), (43, 725121), (69, 451887), (93, 335271), (113, 275931), (129, 241707), (207, 150629), (279, 111757), (339, 91977), (387, 80569), (713, 43731), (989, 31527), (1017, 30659), (1333, 23391), (2139, 14577), (2599, 11997), (2967, 10509), (3503, 8901), (3999, 7797), (4859, 6417)]