20558481

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{4447}}^1$

素因数の和:4540

約数の個数: 16

約数和(自身を含む): 29036544

約数和(自身を除く): 8478063

約数列:

[1, 3, 23, 67, 69, 201, 1541, 4447, 4623, 13341, 102281, 297949, 306843, 893847, 6852827, 20558481]

約数ペア:

[(1, 20558481), (3, 6852827), (23, 893847), (67, 306843), (69, 297949), (201, 102281), (1541, 13341), (4447, 4623)]