20144579

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 26664960

約数和(自身を除く): 6520381

約数列:

[1, 7, 13, 19, 61, 91, 133, 191, 247, 427, 793, 1159, 1337, 1729, 2483, 3629, 5551, 8113, 11651, 15067, 17381, 25403, 47177, 81557, 105469, 151463, 221369, 330239, 1060241, 1549583, 2877797, 20144579]

約数ペア:

[(1, 20144579), (7, 2877797), (13, 1549583), (19, 1060241), (61, 330239), (91, 221369), (133, 151463), (191, 105469), (247, 81557), (427, 47177), (793, 25403), (1159, 17381), (1337, 15067), (1729, 11651), (2483, 8113), (3629, 5551)]