19959121036

素因数分解:

$2^2\times {\mathrm{1109}}^1\times {\mathrm{4499351}}^1$

素因数の和:4500464

約数の個数: 12

約数和(自身を含む): 34959965040

約数和(自身を除く): 15000844004

約数列:

[1, 2, 4, 1109, 2218, 4436, 4499351, 8998702, 17997404, 4989780259, 9979560518, 19959121036]

約数ペア:

[(1, 19959121036), (2, 9979560518), (4, 4989780259), (1109, 17997404), (2218, 8998702), (4436, 4499351)]