20798921

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3931}}^1$

素因数の和:3992

約数の個数: 16

約数和(自身を含む): 25101888

約数和(自身を除く): 4302967

約数列:

[1, 11, 13, 37, 143, 407, 481, 3931, 5291, 43241, 51103, 145447, 562133, 1599917, 1890811, 20798921]

約数ペア:

[(1, 20798921), (11, 1890811), (13, 1599917), (37, 562133), (143, 145447), (407, 51103), (481, 43241), (3931, 5291)]