21260965

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{22739}}^1$

素因数の和:22772

約数の個数: 16

約数和(自身を含む): 29471040

約数和(自身を除く): 8210075

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 22739, 113695, 250129, 386563, 1250645, 1932815, 4252193, 21260965]

約数ペア:

[(1, 21260965), (5, 4252193), (11, 1932815), (17, 1250645), (55, 386563), (85, 250129), (187, 113695), (935, 22739)]