201208905

素因数分解:

$3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{22697}}^1$

素因数の和:22905

約数の個数: 24

約数和(自身を含む): 350547912

約数和(自身を除く): 149339007

約数列:

[1, 3, 5, 9, 15, 45, 197, 591, 985, 1773, 2955, 8865, 22697, 68091, 113485, 204273, 340455, 1021365, 4471309, 13413927, 22356545, 40241781, 67069635, 201208905]

約数ペア:

[(1, 201208905), (3, 67069635), (5, 40241781), (9, 22356545), (15, 13413927), (45, 4471309), (197, 1021365), (591, 340455), (985, 204273), (1773, 113485), (2955, 68091), (8865, 22697)]