39982905

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20663}}^1$

素因数の和:20717

約数の個数: 24

約数和(自身を含む): 70918848

約数和(自身を除く): 30935943

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 20663, 61989, 103315, 185967, 309945, 888509, 929835, 2665527, 4442545, 7996581, 13327635, 39982905]

約数ペア:

[(1, 39982905), (3, 13327635), (5, 7996581), (9, 4442545), (15, 2665527), (43, 929835), (45, 888509), (129, 309945), (215, 185967), (387, 103315), (645, 61989), (1935, 20663)]