21090900105

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{255137}}^1$

素因数の和:255326

約数の個数: 48

約数和(自身を含む): 40119940224

約数和(自身を除く): 19029040119

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 167, 495, 501, 835, 1503, 1837, 2505, 5511, 7515, 9185, 16533, 27555, 82665, 255137, 765411, 1275685, 2296233, 2806507, 3827055, 8419521, 11481165, 14032535, 25258563, 42097605, 42607879, 126292815, 127823637, 213039395, 383470911, 468686669, 639118185, 1406060007, 1917354555, 2343433345, 4218180021, 7030300035, 21090900105]

約数ペア:

[(1, 21090900105), (3, 7030300035), (5, 4218180021), (9, 2343433345), (11, 1917354555), (15, 1406060007), (33, 639118185), (45, 468686669), (55, 383470911), (99, 213039395), (165, 127823637), (167, 126292815), (495, 42607879), (501, 42097605), (835, 25258563), (1503, 14032535), (1837, 11481165), (2505, 8419521), (5511, 3827055), (7515, 2806507), (9185, 2296233), (16533, 1275685), (27555, 765411), (82665, 255137)]