20091854

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{2371}}^1$

素因数の和:2615

約数の個数: 16

約数和(自身を含む): 31879680

約数和(自身を除く): 11787826

約数列:

[1, 2, 19, 38, 223, 446, 2371, 4237, 4742, 8474, 45049, 90098, 528733, 1057466, 10045927, 20091854]

約数ペア:

[(1, 20091854), (2, 10045927), (19, 1057466), (38, 528733), (223, 90098), (446, 45049), (2371, 8474), (4237, 4742)]