28253511

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{757}}^1$

素因数の和:816

約数の個数: 48

約数和(自身を含む): 49664160

約数和(自身を除く): 21410649

約数列:

[1, 3, 9, 11, 13, 29, 33, 39, 87, 99, 117, 143, 261, 319, 377, 429, 757, 957, 1131, 1287, 2271, 2871, 3393, 4147, 6813, 8327, 9841, 12441, 21953, 24981, 29523, 37323, 65859, 74943, 88569, 108251, 197577, 241483, 285389, 324753, 724449, 856167, 974259, 2173347, 2568501, 3139279, 9417837, 28253511]

約数ペア:

[(1, 28253511), (3, 9417837), (9, 3139279), (11, 2568501), (13, 2173347), (29, 974259), (33, 856167), (39, 724449), (87, 324753), (99, 285389), (117, 241483), (143, 197577), (261, 108251), (319, 88569), (377, 74943), (429, 65859), (757, 37323), (957, 29523), (1131, 24981), (1287, 21953), (2271, 12441), (2871, 9841), (3393, 8327), (4147, 6813)]