20817843

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{5167}}^1$

素因数の和:5266

約数の個数: 16

約数和(自身を含む): 29767680

約数和(自身を除く): 8949837

約数列:

[1, 3, 17, 51, 79, 237, 1343, 4029, 5167, 15501, 87839, 263517, 408193, 1224579, 6939281, 20817843]

約数ペア:

[(1, 20817843), (3, 6939281), (17, 1224579), (51, 408193), (79, 263517), (237, 87839), (1343, 15501), (4029, 5167)]