21432895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16943}}^1$

素因数の和:16982

約数の個数: 16

約数和(自身を含む): 29279232

約数和(自身を除く): 7846337

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 16943, 84715, 186373, 389689, 931865, 1948445, 4286579, 21432895]

約数ペア:

[(1, 21432895), (5, 4286579), (11, 1948445), (23, 931865), (55, 389689), (115, 186373), (253, 84715), (1265, 16943)]