19515411

素因数分解:

$3^4\times {\mathrm{197}}^1\times {\mathrm{1223}}^1$

素因数の和:1432

約数の個数: 20

約数和(自身を含む): 29324592

約数和(自身を除く): 9809181

約数列:

[1, 3, 9, 27, 81, 197, 591, 1223, 1773, 3669, 5319, 11007, 15957, 33021, 99063, 240931, 722793, 2168379, 6505137, 19515411]

約数ペア:

[(1, 19515411), (3, 6505137), (9, 2168379), (27, 722793), (81, 240931), (197, 99063), (591, 33021), (1223, 15957), (1773, 11007), (3669, 5319)]