19856475

素因数分解:

$3^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{1279}}^1$

素因数の和:1321

約数の個数: 48

約数和(自身を含む): 38092800

約数和(自身を除く): 18236325

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 115, 135, 207, 225, 345, 575, 621, 675, 1035, 1279, 1725, 3105, 3837, 5175, 6395, 11511, 15525, 19185, 29417, 31975, 34533, 57555, 88251, 95925, 147085, 172665, 264753, 287775, 441255, 735425, 794259, 863325, 1323765, 2206275, 3971295, 6618825, 19856475]

約数ペア:

[(1, 19856475), (3, 6618825), (5, 3971295), (9, 2206275), (15, 1323765), (23, 863325), (25, 794259), (27, 735425), (45, 441255), (69, 287775), (75, 264753), (115, 172665), (135, 147085), (207, 95925), (225, 88251), (345, 57555), (575, 34533), (621, 31975), (675, 29417), (1035, 19185), (1279, 15525), (1725, 11511), (3105, 6395), (3837, 5175)]