21158235

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{67169}}^1$

素因数の和:67187

約数の個数: 24

約数和(自身を含む): 41914080

約数和(自身を除く): 20755845

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 67169, 201507, 335845, 470183, 604521, 1007535, 1410549, 2350915, 3022605, 4231647, 7052745, 21158235]

約数ペア:

[(1, 21158235), (3, 7052745), (5, 4231647), (7, 3022605), (9, 2350915), (15, 1410549), (21, 1007535), (35, 604521), (45, 470183), (63, 335845), (105, 201507), (315, 67169)]