18966225

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{5881}}^1$

素因数の和:5937

約数の個数: 24

約数和(自身を含む): 32092192

約数和(自身を除く): 13125967

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 5881, 17643, 29405, 88215, 147025, 252883, 441075, 758649, 1264415, 3793245, 6322075, 18966225]

約数ペア:

[(1, 18966225), (3, 6322075), (5, 3793245), (15, 1264415), (25, 758649), (43, 441075), (75, 252883), (129, 147025), (215, 88215), (645, 29405), (1075, 17643), (3225, 5881)]