25397145

素因数分解:

$3^5\times 5^1\times {\mathrm{20903}}^1$

素因数の和:20923

約数の個数: 24

約数和(自身を含む): 45654336

約数和(自身を除く): 20257191

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 20903, 62709, 104515, 188127, 313545, 564381, 940635, 1693143, 2821905, 5079429, 8465715, 25397145]

約数ペア:

[(1, 25397145), (3, 8465715), (5, 5079429), (9, 2821905), (15, 1693143), (27, 940635), (45, 564381), (81, 313545), (135, 188127), (243, 104515), (405, 62709), (1215, 20903)]