20451501

素因数分解:

$3^3\times 7^1\times {\mathrm{241}}^1\times {\mathrm{449}}^1$

素因数の和:706

約数の個数: 32

約数和(自身を含む): 34848000

約数和(自身を除く): 14396499

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 241, 449, 723, 1347, 1687, 2169, 3143, 4041, 5061, 6507, 9429, 12123, 15183, 28287, 45549, 84861, 108209, 324627, 757463, 973881, 2272389, 2921643, 6817167, 20451501]

約数ペア:

[(1, 20451501), (3, 6817167), (7, 2921643), (9, 2272389), (21, 973881), (27, 757463), (63, 324627), (189, 108209), (241, 84861), (449, 45549), (723, 28287), (1347, 15183), (1687, 12123), (2169, 9429), (3143, 6507), (4041, 5061)]