20847021

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{14447}}^1$

素因数の和:14500

約数の個数: 16

約数和(自身を含む): 30745344

約数和(自身を除く): 9898323

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 14447, 43341, 187811, 534539, 563433, 1603617, 6949007, 20847021]

約数ペア:

[(1, 20847021), (3, 6949007), (13, 1603617), (37, 563433), (39, 534539), (111, 187811), (481, 43341), (1443, 14447)]