1555565553

素因数分解:

$3^4\times {\mathrm{857}}^1\times {\mathrm{22409}}^1$

素因数の和:23278

約数の個数: 20

約数和(自身を含む): 2326561380

約数和(自身を除く): 770995827

約数列:

[1, 3, 9, 27, 81, 857, 2571, 7713, 22409, 23139, 67227, 69417, 201681, 605043, 1815129, 19204513, 57613539, 172840617, 518521851, 1555565553]

約数ペア:

[(1, 1555565553), (3, 518521851), (9, 172840617), (27, 57613539), (81, 19204513), (857, 1815129), (2571, 605043), (7713, 201681), (22409, 69417), (23139, 67227)]