21705497

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:584

約数の個数: 16

約数和(自身を含む): 24509760

約数和(自身を除く): 2804263

約数列:

[1, 11, 43, 109, 421, 473, 1199, 4631, 4687, 18103, 45889, 51557, 199133, 504779, 1973227, 21705497]

約数ペア:

[(1, 21705497), (11, 1973227), (43, 504779), (109, 199133), (421, 51557), (473, 45889), (1199, 18103), (4631, 4687)]