21746870

素因数分解:

$2^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{4909}}^1$

素因数の和:5359

約数の個数: 16

約数和(自身を含む): 39240720

約数和(自身を除く): 17493850

約数列:

[1, 2, 5, 10, 443, 886, 2215, 4430, 4909, 9818, 24545, 49090, 2174687, 4349374, 10873435, 21746870]

約数ペア:

[(1, 21746870), (2, 10873435), (5, 4349374), (10, 2174687), (443, 49090), (886, 24545), (2215, 9818), (4430, 4909)]