821475

素因数分解:

$3^3\times 5^2\times {\mathrm{1217}}^1$

素因数の和:1236

約数の個数: 24

約数和(自身を含む): 1510320

約数和(自身を除く): 688845

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 1217, 3651, 6085, 10953, 18255, 30425, 32859, 54765, 91275, 164295, 273825, 821475]

約数ペア:

[(1, 821475), (3, 273825), (5, 164295), (9, 91275), (15, 54765), (25, 32859), (27, 30425), (45, 18255), (75, 10953), (135, 6085), (225, 3651), (675, 1217)]