15280407

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{2657}}^1$

素因数の和:2740

約数の個数: 20

約数和(自身を含む): 23156496

約数和(自身を除く): 7876089

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 2657, 5751, 7971, 23913, 71739, 188647, 215217, 565941, 1697823, 5093469, 15280407]

約数ペア:

[(1, 15280407), (3, 5093469), (9, 1697823), (27, 565941), (71, 215217), (81, 188647), (213, 71739), (639, 23913), (1917, 7971), (2657, 5751)]