28820799

素因数分解:

$3^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1399}}^1$

素因数の和:1524

約数の個数: 32

約数和(自身を含む): 49280000

約数和(自身を除く): 20459201

約数列:

[1, 3, 7, 9, 21, 27, 63, 109, 189, 327, 763, 981, 1399, 2289, 2943, 4197, 6867, 9793, 12591, 20601, 29379, 37773, 88137, 152491, 264411, 457473, 1067437, 1372419, 3202311, 4117257, 9606933, 28820799]

約数ペア:

[(1, 28820799), (3, 9606933), (7, 4117257), (9, 3202311), (21, 1372419), (27, 1067437), (63, 457473), (109, 264411), (189, 152491), (327, 88137), (763, 37773), (981, 29379), (1399, 20601), (2289, 12591), (2943, 9793), (4197, 6867)]