54991305

素因数分解:

$3^4\times 5^1\times {\mathrm{135781}}^1$

素因数の和:135798

約数の個数: 20

約数和(自身を含む): 98577732

約数和(自身を除く): 43586427

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 135781, 407343, 678905, 1222029, 2036715, 3666087, 6110145, 10998261, 18330435, 54991305]

約数ペア:

[(1, 54991305), (3, 18330435), (5, 10998261), (9, 6110145), (15, 3666087), (27, 2036715), (45, 1222029), (81, 678905), (135, 407343), (405, 135781)]