1561401

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 2483520

約数和(自身を除く): 922119

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 397, 437, 1191, 1311, 3573, 3933, 7543, 9131, 22629, 27393, 67887, 82179, 173489, 520467, 1561401]

約数ペア:

[(1, 1561401), (3, 520467), (9, 173489), (19, 82179), (23, 67887), (57, 27393), (69, 22629), (171, 9131), (207, 7543), (397, 3933), (437, 3573), (1191, 1311)]