21497760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14929}}^1$

素因数の和:14950

約数の個数: 72

約数和(自身を含む): 73366020

約数和(自身を除く): 51868260

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14929, 29858, 44787, 59716, 74645, 89574, 119432, 134361, 149290, 179148, 223935, 238864, 268722, 298580, 358296, 447870, 477728, 537444, 597160, 671805, 716592, 895740, 1074888, 1194320, 1343610, 1433184, 1791480, 2149776, 2388640, 2687220, 3582960, 4299552, 5374440, 7165920, 10748880, 21497760]

約数ペア:

[(1, 21497760), (2, 10748880), (3, 7165920), (4, 5374440), (5, 4299552), (6, 3582960), (8, 2687220), (9, 2388640), (10, 2149776), (12, 1791480), (15, 1433184), (16, 1343610), (18, 1194320), (20, 1074888), (24, 895740), (30, 716592), (32, 671805), (36, 597160), (40, 537444), (45, 477728), (48, 447870), (60, 358296), (72, 298580), (80, 268722), (90, 238864), (96, 223935), (120, 179148), (144, 149290), (160, 134361), (180, 119432), (240, 89574), (288, 74645), (360, 59716), (480, 44787), (720, 29858), (1440, 14929)]