20415291

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{27551}}^1$

素因数の和:27586

約数の個数: 16

約数和(自身を含む): 30858240

約数和(自身を除く): 10442949

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 27551, 82653, 358163, 523469, 1074489, 1570407, 6805097, 20415291]

約数ペア:

[(1, 20415291), (3, 6805097), (13, 1570407), (19, 1074489), (39, 523469), (57, 358163), (247, 82653), (741, 27551)]