19959095

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 27246912

約数和(自身を除く): 7287817

約数列:

[1, 5, 13, 37, 43, 65, 185, 193, 215, 481, 559, 965, 1591, 2405, 2509, 2795, 7141, 7955, 8299, 12545, 20683, 35705, 41495, 92833, 103415, 107887, 307063, 464165, 539435, 1535315, 3991819, 19959095]

約数ペア:

[(1, 19959095), (5, 3991819), (13, 1535315), (37, 539435), (43, 464165), (65, 307063), (185, 107887), (193, 103415), (215, 92833), (481, 41495), (559, 35705), (965, 20683), (1591, 12545), (2405, 8299), (2509, 7955), (2795, 7141)]