2787615

素因数分解:

$3^4\times 5^1\times {\mathrm{6883}}^1$

素因数の和:6900

約数の個数: 20

約数和(自身を含む): 4997784

約数和(自身を除く): 2210169

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 6883, 20649, 34415, 61947, 103245, 185841, 309735, 557523, 929205, 2787615]

約数ペア:

[(1, 2787615), (3, 929205), (5, 557523), (9, 309735), (15, 185841), (27, 103245), (45, 61947), (81, 34415), (135, 20649), (405, 6883)]