21793095

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 40435200

約数和(自身を除く): 18642105

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 71, 95, 171, 213, 285, 355, 359, 639, 855, 1065, 1077, 1349, 1795, 3195, 3231, 4047, 5385, 6745, 6821, 12141, 16155, 20235, 20463, 25489, 34105, 60705, 61389, 76467, 102315, 127445, 229401, 306945, 382335, 484291, 1147005, 1452873, 2421455, 4358619, 7264365, 21793095]

約数ペア:

[(1, 21793095), (3, 7264365), (5, 4358619), (9, 2421455), (15, 1452873), (19, 1147005), (45, 484291), (57, 382335), (71, 306945), (95, 229401), (171, 127445), (213, 102315), (285, 76467), (355, 61389), (359, 60705), (639, 34105), (855, 25489), (1065, 20463), (1077, 20235), (1349, 16155), (1795, 12141), (3195, 6821), (3231, 6745), (4047, 5385)]