20652891

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 32563200

約数和(自身を除く): 11910309

約数列:

[1, 3, 7, 21, 59, 79, 177, 211, 237, 413, 553, 633, 1239, 1477, 1659, 4431, 4661, 12449, 13983, 16669, 32627, 37347, 50007, 87143, 97881, 116683, 261429, 350049, 983471, 2950413, 6884297, 20652891]

約数ペア:

[(1, 20652891), (3, 6884297), (7, 2950413), (21, 983471), (59, 350049), (79, 261429), (177, 116683), (211, 97881), (237, 87143), (413, 50007), (553, 37347), (633, 32627), (1239, 16669), (1477, 13983), (1659, 12449), (4431, 4661)]