20797429905

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9431941}}^1$

素因数の和:9431966

約数の個数: 36

約数和(自身を含む): 41934414132

約数和(自身を除く): 21136984227

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9431941, 28295823, 47159705, 66023587, 84887469, 141479115, 198070761, 330117935, 424437345, 462165109, 594212283, 990353805, 1386495327, 2310825545, 2971061415, 4159485981, 6932476635, 20797429905]

約数ペア:

[(1, 20797429905), (3, 6932476635), (5, 4159485981), (7, 2971061415), (9, 2310825545), (15, 1386495327), (21, 990353805), (35, 594212283), (45, 462165109), (49, 424437345), (63, 330117935), (105, 198070761), (147, 141479115), (245, 84887469), (315, 66023587), (441, 47159705), (735, 28295823), (2205, 9431941)]