21530775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{41011}}^1$

素因数の和:41031

約数の個数: 24

約数和(自身を含む): 40683904

約数和(自身を除く): 19153129

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 41011, 123033, 205055, 287077, 615165, 861231, 1025275, 1435385, 3075825, 4306155, 7176925, 21530775]

約数ペア:

[(1, 21530775), (3, 7176925), (5, 4306155), (7, 3075825), (15, 1435385), (21, 1025275), (25, 861231), (35, 615165), (75, 287077), (105, 205055), (175, 123033), (525, 41011)]