18877995

素因数分解:

$3^3\times 5^1\times {\mathrm{139837}}^1$

素因数の和:139851

約数の個数: 16

約数和(自身を含む): 33561120

約数和(自身を除く): 14683125

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 139837, 419511, 699185, 1258533, 2097555, 3775599, 6292665, 18877995]

約数ペア:

[(1, 18877995), (3, 6292665), (5, 3775599), (9, 2097555), (15, 1258533), (27, 699185), (45, 419511), (135, 139837)]