28659987

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{5281}}^1$

素因数の和:5360

約数の個数: 20

約数和(自身を含む): 43460296

約数和(自身を除く): 14800309

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5281, 5427, 15843, 47529, 142587, 353827, 427761, 1061481, 3184443, 9553329, 28659987]

約数ペア:

[(1, 28659987), (3, 9553329), (9, 3184443), (27, 1061481), (67, 427761), (81, 353827), (201, 142587), (603, 47529), (1809, 15843), (5281, 5427)]