81410021

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{21577}}^1$

素因数の和:21609

約数の個数: 16

約数和(自身を含む): 103574400

約数和(自身を除く): 22164379

約数列:

[1, 7, 11, 49, 77, 343, 539, 3773, 21577, 151039, 237347, 1057273, 1661429, 7400911, 11630003, 81410021]

約数ペア:

[(1, 81410021), (7, 11630003), (11, 7400911), (49, 1661429), (77, 1057273), (343, 237347), (539, 151039), (3773, 21577)]