28138821

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{2113}}^1$

素因数の和:2332

約数の個数: 16

約数和(自身を含む): 39371136

約数和(自身を除く): 11232315

約数列:

[1, 3, 23, 69, 193, 579, 2113, 4439, 6339, 13317, 48599, 145797, 407809, 1223427, 9379607, 28138821]

約数ペア:

[(1, 28138821), (3, 9379607), (23, 1223427), (69, 407809), (193, 145797), (579, 48599), (2113, 13317), (4439, 6339)]