21258825

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{40493}}^1$

素因数の和:40513

約数の個数: 24

約数和(自身を含む): 40170048

約数和(自身を除く): 18911223

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 40493, 121479, 202465, 283451, 607395, 850353, 1012325, 1417255, 3036975, 4251765, 7086275, 21258825]

約数ペア:

[(1, 21258825), (3, 7086275), (5, 4251765), (7, 3036975), (15, 1417255), (21, 1012325), (25, 850353), (35, 607395), (75, 283451), (105, 202465), (175, 121479), (525, 40493)]