18935181

素因数分解:

$3^3\times {\mathrm{137}}^1\times {\mathrm{5119}}^1$

素因数の和:5265

約数の個数: 16

約数和(自身を含む): 28262400

約数和(自身を除く): 9327219

約数列:

[1, 3, 9, 27, 137, 411, 1233, 3699, 5119, 15357, 46071, 138213, 701303, 2103909, 6311727, 18935181]

約数ペア:

[(1, 18935181), (3, 6311727), (9, 2103909), (27, 701303), (137, 138213), (411, 46071), (1233, 15357), (3699, 5119)]