12987855

素因数分解:

$3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{727}}^1$

素因数の和:1135

約数の個数: 24

約数和(自身を含む): 22600032

約数和(自身を除く): 9612177

約数列:

[1, 3, 5, 9, 15, 45, 397, 727, 1191, 1985, 2181, 3573, 3635, 5955, 6543, 10905, 17865, 32715, 288619, 865857, 1443095, 2597571, 4329285, 12987855]

約数ペア:

[(1, 12987855), (3, 4329285), (5, 2597571), (9, 1443095), (15, 865857), (45, 288619), (397, 32715), (727, 17865), (1191, 10905), (1985, 6543), (2181, 5955), (3573, 3635)]