21880510

素因数分解:

$2^1\times 5^1\times {\mathrm{1151}}^1\times {\mathrm{1901}}^1$

素因数の和:3059

約数の個数: 16

約数和(自身を含む): 39439872

約数和(自身を除く): 17559362

約数列:

[1, 2, 5, 10, 1151, 1901, 2302, 3802, 5755, 9505, 11510, 19010, 2188051, 4376102, 10940255, 21880510]

約数ペア:

[(1, 21880510), (2, 10940255), (5, 4376102), (10, 2188051), (1151, 19010), (1901, 11510), (2302, 9505), (3802, 5755)]