20804966545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{1666397}}^1$

素因数の和:1666640

約数の個数: 16

約数和(自身を含む): 27355589568

約数和(自身を除く): 6550623023

約数列:

[1, 5, 11, 55, 227, 1135, 2497, 12485, 1666397, 8331985, 18330367, 91651835, 378272119, 1891360595, 4160993309, 20804966545]

約数ペア:

[(1, 20804966545), (5, 4160993309), (11, 1891360595), (55, 378272119), (227, 91651835), (1135, 18330367), (2497, 8331985), (12485, 1666397)]