2178975

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{1709}}^1$

素因数の和:1739

約数の個数: 24

約数和(自身を含む): 3816720

約数和(自身を除く): 1637745

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 1709, 5127, 8545, 25635, 29053, 42725, 87159, 128175, 145265, 435795, 726325, 2178975]

約数ペア:

[(1, 2178975), (3, 726325), (5, 435795), (15, 145265), (17, 128175), (25, 87159), (51, 42725), (75, 29053), (85, 25635), (255, 8545), (425, 5127), (1275, 1709)]