18905546

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{2143}}^1$

素因数の和:2557

約数の個数: 16

約数和(自身を含む): 31027968

約数和(自身を除く): 12122422

約数列:

[1, 2, 11, 22, 401, 802, 2143, 4286, 4411, 8822, 23573, 47146, 859343, 1718686, 9452773, 18905546]

約数ペア:

[(1, 18905546), (2, 9452773), (11, 1718686), (22, 859343), (401, 47146), (802, 23573), (2143, 8822), (4286, 4411)]