81027873

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{1987}}^1$

素因数の和:2213

約数の個数: 24

約数和(自身を含む): 122810688

約数和(自身を除く): 41782815

約数列:

[1, 3, 9, 23, 69, 197, 207, 591, 1773, 1987, 4531, 5961, 13593, 17883, 40779, 45701, 137103, 391439, 411309, 1174317, 3522951, 9003097, 27009291, 81027873]

約数ペア:

[(1, 81027873), (3, 27009291), (9, 9003097), (23, 3522951), (69, 1174317), (197, 411309), (207, 391439), (591, 137103), (1773, 45701), (1987, 40779), (4531, 17883), (5961, 13593)]