21207027975

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{40394339}}^1$

素因数の和:40394359

約数の個数: 24

約数和(自身を含む): 40071185280

約数和(自身を除く): 18864157305

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 40394339, 121183017, 201971695, 282760373, 605915085, 848281119, 1009858475, 1413801865, 3029575425, 4241405595, 7069009325, 21207027975]

約数ペア:

[(1, 21207027975), (3, 7069009325), (5, 4241405595), (7, 3029575425), (15, 1413801865), (21, 1009858475), (25, 848281119), (35, 605915085), (75, 282760373), (105, 201971695), (175, 121183017), (525, 40394339)]