18654435

素因数分解:

$3^3\times 5^1\times {\mathrm{138181}}^1$

素因数の和:138195

約数の個数: 16

約数和(自身を含む): 33163680

約数和(自身を除く): 14509245

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 138181, 414543, 690905, 1243629, 2072715, 3730887, 6218145, 18654435]

約数ペア:

[(1, 18654435), (3, 6218145), (5, 3730887), (9, 2072715), (15, 1243629), (27, 690905), (45, 414543), (135, 138181)]