28340739

素因数分解:

$3^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1327}}^1$

素因数の和:1456

約数の個数: 32

約数和(自身を含む): 48445440

約数和(自身を除く): 20104701

約数列:

[1, 3, 7, 9, 21, 27, 63, 113, 189, 339, 791, 1017, 1327, 2373, 3051, 3981, 7119, 9289, 11943, 21357, 27867, 35829, 83601, 149951, 250803, 449853, 1049657, 1349559, 3148971, 4048677, 9446913, 28340739]

約数ペア:

[(1, 28340739), (3, 9446913), (7, 4048677), (9, 3148971), (21, 1349559), (27, 1049657), (63, 449853), (113, 250803), (189, 149951), (339, 83601), (791, 35829), (1017, 27867), (1327, 21357), (2373, 11943), (3051, 9289), (3981, 7119)]