201154905

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{638587}}^1$

素因数の和:638605

約数の個数: 24

約数和(自身を含む): 398478912

約数和(自身を除く): 197324007

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 638587, 1915761, 3192935, 4470109, 5747283, 9578805, 13410327, 22350545, 28736415, 40230981, 67051635, 201154905]

約数ペア:

[(1, 201154905), (3, 67051635), (5, 40230981), (7, 28736415), (9, 22350545), (15, 13410327), (21, 9578805), (35, 5747283), (45, 4470109), (63, 3192935), (105, 1915761), (315, 638587)]