21891960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{60811}}^1$

素因数の和:60828

約数の個数: 48

約数和(自身を含む): 71150040

約数和(自身を除く): 49258080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 60811, 121622, 182433, 243244, 304055, 364866, 486488, 547299, 608110, 729732, 912165, 1094598, 1216220, 1459464, 1824330, 2189196, 2432440, 2736495, 3648660, 4378392, 5472990, 7297320, 10945980, 21891960]

約数ペア:

[(1, 21891960), (2, 10945980), (3, 7297320), (4, 5472990), (5, 4378392), (6, 3648660), (8, 2736495), (9, 2432440), (10, 2189196), (12, 1824330), (15, 1459464), (18, 1216220), (20, 1094598), (24, 912165), (30, 729732), (36, 608110), (40, 547299), (45, 486488), (60, 364866), (72, 304055), (90, 243244), (120, 182433), (180, 121622), (360, 60811)]