21597435

素因数分解:

$3^4\times 5^1\times {\mathrm{53327}}^1$

素因数の和:53344

約数の個数: 20

約数和(自身を含む): 38716128

約数和(自身を除く): 17118693

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 53327, 159981, 266635, 479943, 799905, 1439829, 2399715, 4319487, 7199145, 21597435]

約数ペア:

[(1, 21597435), (3, 7199145), (5, 4319487), (9, 2399715), (15, 1439829), (27, 799905), (45, 479943), (81, 266635), (135, 159981), (405, 53327)]