21788100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{563}}^1$

素因数の和:626

約数の個数: 108

約数和(自身を含む): 70005936

約数和(自身を除く): 48217836

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 43, 45, 50, 60, 75, 86, 90, 100, 129, 150, 172, 180, 215, 225, 258, 300, 387, 430, 450, 516, 563, 645, 774, 860, 900, 1075, 1126, 1290, 1548, 1689, 1935, 2150, 2252, 2580, 2815, 3225, 3378, 3870, 4300, 5067, 5630, 6450, 6756, 7740, 8445, 9675, 10134, 11260, 12900, 14075, 16890, 19350, 20268, 24209, 25335, 28150, 33780, 38700, 42225, 48418, 50670, 56300, 72627, 84450, 96836, 101340, 121045, 126675, 145254, 168900, 217881, 242090, 253350, 290508, 363135, 435762, 484180, 506700, 605225, 726270, 871524, 1089405, 1210450, 1452540, 1815675, 2178810, 2420900, 3631350, 4357620, 5447025, 7262700, 10894050, 21788100]

約数ペア:

[(1, 21788100), (2, 10894050), (3, 7262700), (4, 5447025), (5, 4357620), (6, 3631350), (9, 2420900), (10, 2178810), (12, 1815675), (15, 1452540), (18, 1210450), (20, 1089405), (25, 871524), (30, 726270), (36, 605225), (43, 506700), (45, 484180), (50, 435762), (60, 363135), (75, 290508), (86, 253350), (90, 242090), (100, 217881), (129, 168900), (150, 145254), (172, 126675), (180, 121045), (215, 101340), (225, 96836), (258, 84450), (300, 72627), (387, 56300), (430, 50670), (450, 48418), (516, 42225), (563, 38700), (645, 33780), (774, 28150), (860, 25335), (900, 24209), (1075, 20268), (1126, 19350), (1290, 16890), (1548, 14075), (1689, 12900), (1935, 11260), (2150, 10134), (2252, 9675), (2580, 8445), (2815, 7740), (3225, 6756), (3378, 6450), (3870, 5630), (4300, 5067)]