28687515

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{13759}}^1$

素因数の和:13906

約数の個数: 16

約数和(自身を含む): 46233600

約数和(自身を除く): 17546085

約数列:

[1, 3, 5, 15, 139, 417, 695, 2085, 13759, 41277, 68795, 206385, 1912501, 5737503, 9562505, 28687515]

約数ペア:

[(1, 28687515), (3, 9562505), (5, 5737503), (15, 1912501), (139, 206385), (417, 68795), (695, 41277), (2085, 13759)]