20974905

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{66587}}^1$

素因数の和:66605

約数の個数: 24

約数和(自身を含む): 41550912

約数和(自身を除く): 20576007

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 66587, 199761, 332935, 466109, 599283, 998805, 1398327, 2330545, 2996415, 4194981, 6991635, 20974905]

約数ペア:

[(1, 20974905), (3, 6991635), (5, 4194981), (7, 2996415), (9, 2330545), (15, 1398327), (21, 998805), (35, 599283), (45, 466109), (63, 332935), (105, 199761), (315, 66587)]