20499898

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{1319}}^1$

素因数の和:1749

約数の個数: 16

約数和(自身を含む): 32472000

約数和(自身を除く): 11972102

約数列:

[1, 2, 19, 38, 409, 818, 1319, 2638, 7771, 15542, 25061, 50122, 539471, 1078942, 10249949, 20499898]

約数ペア:

[(1, 20499898), (2, 10249949), (19, 1078942), (38, 539471), (409, 50122), (818, 25061), (1319, 15542), (2638, 7771)]