81591831

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{331}}^1\times {\mathrm{449}}^1$

素因数の和:847

約数の個数: 24

約数和(自身を含む): 120416400

約数和(自身を除く): 38824569

約数列:

[1, 3, 9, 61, 183, 331, 449, 549, 993, 1347, 2979, 4041, 20191, 27389, 60573, 82167, 148619, 181719, 246501, 445857, 1337571, 9065759, 27197277, 81591831]

約数ペア:

[(1, 81591831), (3, 27197277), (9, 9065759), (61, 1337571), (183, 445857), (331, 246501), (449, 181719), (549, 148619), (993, 82167), (1347, 60573), (2979, 27389), (4041, 20191)]