20942356

素因数分解:

$2^2\times {\mathrm{1109}}^1\times {\mathrm{4721}}^1$

素因数の和:5834

約数の個数: 12

約数和(自身を含む): 36689940

約数和(自身を除く): 15747584

約数列:

[1, 2, 4, 1109, 2218, 4436, 4721, 9442, 18884, 5235589, 10471178, 20942356]

約数ペア:

[(1, 20942356), (2, 10471178), (4, 5235589), (1109, 18884), (2218, 9442), (4436, 4721)]