1980996886

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{249433}}^1$

素因数の和:249484

約数の個数: 24

約数和(自身を含む): 3421236744

約数和(自身を除く): 1440239858

約数列:

[1, 2, 11, 19, 22, 38, 209, 361, 418, 722, 3971, 7942, 249433, 498866, 2743763, 4739227, 5487526, 9478454, 52131497, 90045313, 104262994, 180090626, 990498443, 1980996886]

約数ペア:

[(1, 1980996886), (2, 990498443), (11, 180090626), (19, 104262994), (22, 90045313), (38, 52131497), (209, 9478454), (361, 5487526), (418, 4739227), (722, 2743763), (3971, 498866), (7942, 249433)]