18181665

素因数分解:

$3^4\times 5^1\times {\mathrm{44893}}^1$

素因数の和:44910

約数の個数: 20

約数和(自身を含む): 32593044

約数和(自身を除く): 14411379

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 44893, 134679, 224465, 404037, 673395, 1212111, 2020185, 3636333, 6060555, 18181665]

約数ペア:

[(1, 18181665), (3, 6060555), (5, 3636333), (9, 2020185), (15, 1212111), (27, 673395), (45, 404037), (81, 224465), (135, 134679), (405, 44893)]