21191760

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9811}}^1$

素因数の和:9833

約数の個数: 80

約数和(自身を含む): 73001280

約数和(自身を除く): 51809520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9811, 19622, 29433, 39244, 49055, 58866, 78488, 88299, 98110, 117732, 147165, 156976, 176598, 196220, 235464, 264897, 294330, 353196, 392440, 441495, 470928, 529794, 588660, 706392, 784880, 882990, 1059588, 1177320, 1324485, 1412784, 1765980, 2119176, 2354640, 2648970, 3531960, 4238352, 5297940, 7063920, 10595880, 21191760]

約数ペア:

[(1, 21191760), (2, 10595880), (3, 7063920), (4, 5297940), (5, 4238352), (6, 3531960), (8, 2648970), (9, 2354640), (10, 2119176), (12, 1765980), (15, 1412784), (16, 1324485), (18, 1177320), (20, 1059588), (24, 882990), (27, 784880), (30, 706392), (36, 588660), (40, 529794), (45, 470928), (48, 441495), (54, 392440), (60, 353196), (72, 294330), (80, 264897), (90, 235464), (108, 196220), (120, 176598), (135, 156976), (144, 147165), (180, 117732), (216, 98110), (240, 88299), (270, 78488), (360, 58866), (432, 49055), (540, 39244), (720, 29433), (1080, 19622), (2160, 9811)]