201561215

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{20599}}^1$

素因数の和:20726

約数の個数: 16

約数和(自身を含む): 257088000

約数和(自身を除く): 55526785

約数列:

[1, 5, 19, 95, 103, 515, 1957, 9785, 20599, 102995, 391381, 1956905, 2121697, 10608485, 40312243, 201561215]

約数ペア:

[(1, 201561215), (5, 40312243), (19, 10608485), (95, 2121697), (103, 1956905), (515, 391381), (1957, 102995), (9785, 20599)]