16556985

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2647}}^1$

素因数の和:2797

約数の個数: 24

約数和(自身を含む): 28916160

約数和(自身を除く): 12359175

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 2647, 6255, 7941, 13235, 23823, 39705, 119115, 367933, 1103799, 1839665, 3311397, 5518995, 16556985]

約数ペア:

[(1, 16556985), (3, 5518995), (5, 3311397), (9, 1839665), (15, 1103799), (45, 367933), (139, 119115), (417, 39705), (695, 23823), (1251, 13235), (2085, 7941), (2647, 6255)]