20815543

素因数分解:

$7^2\times {\mathrm{181}}^1\times {\mathrm{2347}}^1$

素因数の和:2542

約数の個数: 12

約数和(自身を含む): 24358152

約数和(自身を除く): 3542609

約数列:

[1, 7, 49, 181, 1267, 2347, 8869, 16429, 115003, 424807, 2973649, 20815543]

約数ペア:

[(1, 20815543), (7, 2973649), (49, 424807), (181, 115003), (1267, 16429), (2347, 8869)]