81609345

素因数分解:

$3^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{2803}}^1$

素因数の和:3461

約数の個数: 24

約数和(自身を含む): 141725376

約数和(自身を除く): 60116031

約数列:

[1, 3, 5, 9, 15, 45, 647, 1941, 2803, 3235, 5823, 8409, 9705, 14015, 25227, 29115, 42045, 126135, 1813541, 5440623, 9067705, 16321869, 27203115, 81609345]

約数ペア:

[(1, 81609345), (3, 27203115), (5, 16321869), (9, 9067705), (15, 5440623), (45, 1813541), (647, 126135), (1941, 42045), (2803, 29115), (3235, 25227), (5823, 14015), (8409, 9705)]