20949010

素因数分解:

$2^1\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{1889}}^1$

素因数の和:3005

約数の個数: 16

約数和(自身を含む): 37762200

約数和(自身を除く): 16813190

約数列:

[1, 2, 5, 10, 1109, 1889, 2218, 3778, 5545, 9445, 11090, 18890, 2094901, 4189802, 10474505, 20949010]

約数ペア:

[(1, 20949010), (2, 10474505), (5, 4189802), (10, 2094901), (1109, 18890), (1889, 11090), (2218, 9445), (3778, 5545)]