20642122

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{1009}}^1$

素因数の和:1257

約数の個数: 16

約数和(自身を含む): 31742280

約数和(自身を除く): 11100158

約数列:

[1, 2, 53, 106, 193, 386, 1009, 2018, 10229, 20458, 53477, 106954, 194737, 389474, 10321061, 20642122]

約数ペア:

[(1, 20642122), (2, 10321061), (53, 389474), (106, 194737), (193, 106954), (386, 53477), (1009, 20458), (2018, 10229)]