28505727

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{379}}^1$

素因数の和:583

約数の個数: 24

約数和(自身を含む): 42266640

約数和(自身を除く): 13760913

約数列:

[1, 3, 9, 61, 137, 183, 379, 411, 549, 1137, 1233, 3411, 8357, 23119, 25071, 51923, 69357, 75213, 155769, 208071, 467307, 3167303, 9501909, 28505727]

約数ペア:

[(1, 28505727), (3, 9501909), (9, 3167303), (61, 467307), (137, 208071), (183, 155769), (379, 75213), (411, 69357), (549, 51923), (1137, 25071), (1233, 23119), (3411, 8357)]