7781427

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{5651}}^1$

素因数の和:5680

約数の個数: 20

約数和(自身を含む): 12310056

約数和(自身を除く): 4528629

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 5651, 16953, 50859, 96067, 152577, 288201, 457731, 864603, 2593809, 7781427]

約数ペア:

[(1, 7781427), (3, 2593809), (9, 864603), (17, 457731), (27, 288201), (51, 152577), (81, 96067), (153, 50859), (459, 16953), (1377, 5651)]