11987505

素因数分解:

$3^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{547}}^1$

素因数の和:1045

約数の個数: 24

約数和(自身を含む): 20859072

約数和(自身を除く): 8871567

約数列:

[1, 3, 5, 9, 15, 45, 487, 547, 1461, 1641, 2435, 2735, 4383, 4923, 7305, 8205, 21915, 24615, 266389, 799167, 1331945, 2397501, 3995835, 11987505]

約数ペア:

[(1, 11987505), (3, 3995835), (5, 2397501), (9, 1331945), (15, 799167), (45, 266389), (487, 24615), (547, 21915), (1461, 8205), (1641, 7305), (2435, 4923), (2735, 4383)]