31491369

素因数分解:

$3^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1831}}^1$

素因数の和:1867

約数の個数: 48

約数和(自身を含む): 58477440

約数和(自身を除く): 26986071

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 91, 117, 147, 189, 273, 351, 441, 637, 819, 1323, 1831, 1911, 2457, 5493, 5733, 12817, 16479, 17199, 23803, 38451, 49437, 71409, 89719, 115353, 166621, 214227, 269157, 346059, 499863, 642681, 807471, 1166347, 1499589, 2422413, 3499041, 4498767, 10497123, 31491369]

約数ペア:

[(1, 31491369), (3, 10497123), (7, 4498767), (9, 3499041), (13, 2422413), (21, 1499589), (27, 1166347), (39, 807471), (49, 642681), (63, 499863), (91, 346059), (117, 269157), (147, 214227), (189, 166621), (273, 115353), (351, 89719), (441, 71409), (637, 49437), (819, 38451), (1323, 23803), (1831, 17199), (1911, 16479), (2457, 12817), (5493, 5733)]