18885399

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{10303}}^1$

素因数の和:10366

約数の個数: 16

約数和(自身を含む): 27697152

約数和(自身を除く): 8811753

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 10303, 30909, 133939, 401817, 484241, 1452723, 6295133, 18885399]

約数ペア:

[(1, 18885399), (3, 6295133), (13, 1452723), (39, 484241), (47, 401817), (141, 133939), (611, 30909), (1833, 10303)]