21186960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2053}}^1$

素因数の和:2112

約数の個数: 80

約数和(自身を含む): 67239744

約数和(自身を除く): 46052784

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 172, 215, 240, 258, 344, 430, 516, 645, 688, 860, 1032, 1290, 1720, 2053, 2064, 2580, 3440, 4106, 5160, 6159, 8212, 10265, 10320, 12318, 16424, 20530, 24636, 30795, 32848, 41060, 49272, 61590, 82120, 88279, 98544, 123180, 164240, 176558, 246360, 264837, 353116, 441395, 492720, 529674, 706232, 882790, 1059348, 1324185, 1412464, 1765580, 2118696, 2648370, 3531160, 4237392, 5296740, 7062320, 10593480, 21186960]

約数ペア:

[(1, 21186960), (2, 10593480), (3, 7062320), (4, 5296740), (5, 4237392), (6, 3531160), (8, 2648370), (10, 2118696), (12, 1765580), (15, 1412464), (16, 1324185), (20, 1059348), (24, 882790), (30, 706232), (40, 529674), (43, 492720), (48, 441395), (60, 353116), (80, 264837), (86, 246360), (120, 176558), (129, 164240), (172, 123180), (215, 98544), (240, 88279), (258, 82120), (344, 61590), (430, 49272), (516, 41060), (645, 32848), (688, 30795), (860, 24636), (1032, 20530), (1290, 16424), (1720, 12318), (2053, 10320), (2064, 10265), (2580, 8212), (3440, 6159), (4106, 5160)]