20484651

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 31477248

約数和(自身を除く): 10992597

約数列:

[1, 3, 11, 23, 33, 69, 137, 197, 253, 411, 591, 759, 1507, 2167, 3151, 4521, 4531, 6501, 9453, 13593, 26989, 34661, 49841, 80967, 103983, 149523, 296879, 620747, 890637, 1862241, 6828217, 20484651]

約数ペア:

[(1, 20484651), (3, 6828217), (11, 1862241), (23, 890637), (33, 620747), (69, 296879), (137, 149523), (197, 103983), (253, 80967), (411, 49841), (591, 34661), (759, 26989), (1507, 13593), (2167, 9453), (3151, 6501), (4521, 4531)]