20751555

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4057}}^1$

素因数の和:4107

約数の個数: 32

約数和(自身を含む): 37398528

約数和(自身を除く): 16646973

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 465, 1023, 1705, 4057, 5115, 12171, 20285, 44627, 60855, 125767, 133881, 223135, 377301, 628835, 669405, 1383437, 1886505, 4150311, 6917185, 20751555]

約数ペア:

[(1, 20751555), (3, 6917185), (5, 4150311), (11, 1886505), (15, 1383437), (31, 669405), (33, 628835), (55, 377301), (93, 223135), (155, 133881), (165, 125767), (341, 60855), (465, 44627), (1023, 20285), (1705, 12171), (4057, 5115)]