20662245

素因数分解:

$3^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1279}}^1$

素因数の和:1649

約数の個数: 24

約数和(自身を含む): 35942400

約数和(自身を除く): 15280155

約数列:

[1, 3, 5, 9, 15, 45, 359, 1077, 1279, 1795, 3231, 3837, 5385, 6395, 11511, 16155, 19185, 57555, 459161, 1377483, 2295805, 4132449, 6887415, 20662245]

約数ペア:

[(1, 20662245), (3, 6887415), (5, 4132449), (9, 2295805), (15, 1377483), (45, 459161), (359, 57555), (1077, 19185), (1279, 16155), (1795, 11511), (3231, 6395), (3837, 5385)]