12257415

素因数分解:

$3^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{647}}^1$

素因数の和:1079

約数の個数: 24

約数和(自身を含む): 21329568

約数和(自身を除く): 9072153

約数列:

[1, 3, 5, 9, 15, 45, 421, 647, 1263, 1941, 2105, 3235, 3789, 5823, 6315, 9705, 18945, 29115, 272387, 817161, 1361935, 2451483, 4085805, 12257415]

約数ペア:

[(1, 12257415), (3, 4085805), (5, 2451483), (9, 1361935), (15, 817161), (45, 272387), (421, 29115), (647, 18945), (1263, 9705), (1941, 6315), (2105, 5823), (3235, 3789)]