18729153

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{523}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 28446912

約数和(自身を除く): 9717759

約数列:

[1, 3, 9, 23, 69, 173, 207, 519, 523, 1557, 1569, 3979, 4707, 11937, 12029, 35811, 36087, 90479, 108261, 271437, 814311, 2081017, 6243051, 18729153]

約数ペア:

[(1, 18729153), (3, 6243051), (9, 2081017), (23, 814311), (69, 271437), (173, 108261), (207, 90479), (519, 36087), (523, 35811), (1557, 12029), (1569, 11937), (3979, 4707)]