12687435

素因数分解:

$3^4\times 5^1\times {\mathrm{31327}}^1$

素因数の和:31344

約数の個数: 20

約数和(自身を含む): 22744128

約数和(自身を除く): 10056693

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 31327, 93981, 156635, 281943, 469905, 845829, 1409715, 2537487, 4229145, 12687435]

約数ペア:

[(1, 12687435), (3, 4229145), (5, 2537487), (9, 1409715), (15, 845829), (27, 469905), (45, 281943), (81, 156635), (135, 93981), (405, 31327)]