28129989

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{13151}}^1$

素因数の和:13208

約数の個数: 16

約数和(自身を含む): 40402944

約数和(自身を除く): 12272955

約数列:

[1, 3, 23, 31, 69, 93, 713, 2139, 13151, 39453, 302473, 407681, 907419, 1223043, 9376663, 28129989]

約数ペア:

[(1, 28129989), (3, 9376663), (23, 1223043), (31, 907419), (69, 407681), (93, 302473), (713, 39453), (2139, 13151)]