21468015

素因数分解:

$3^2\times 5^1\times {\mathrm{373}}^1\times {\mathrm{1279}}^1$

素因数の和:1663

約数の個数: 24

約数和(自身を含む): 37340160

約数和(自身を除く): 15872145

約数列:

[1, 3, 5, 9, 15, 45, 373, 1119, 1279, 1865, 3357, 3837, 5595, 6395, 11511, 16785, 19185, 57555, 477067, 1431201, 2385335, 4293603, 7156005, 21468015]

約数ペア:

[(1, 21468015), (3, 7156005), (5, 4293603), (9, 2385335), (15, 1431201), (45, 477067), (373, 57555), (1119, 19185), (1279, 16785), (1865, 11511), (3357, 6395), (3837, 5595)]