21220500

素因数分解:

$2^2\times 3^1\times 5^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:119

約数の個数: 192

約数和(自身を含む): 73801728

約数和(自身を除く): 52581228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 43, 47, 50, 60, 70, 75, 84, 86, 94, 100, 105, 125, 129, 140, 141, 150, 172, 175, 188, 210, 215, 235, 250, 258, 282, 300, 301, 329, 350, 375, 420, 430, 470, 500, 516, 525, 564, 602, 645, 658, 700, 705, 750, 860, 875, 903, 940, 987, 1050, 1075, 1175, 1204, 1290, 1316, 1410, 1500, 1505, 1645, 1750, 1806, 1974, 2021, 2100, 2150, 2350, 2580, 2625, 2820, 3010, 3225, 3290, 3500, 3525, 3612, 3948, 4042, 4300, 4515, 4700, 4935, 5250, 5375, 5875, 6020, 6063, 6450, 6580, 7050, 7525, 8084, 8225, 9030, 9870, 10105, 10500, 10750, 11750, 12126, 12900, 14100, 14147, 15050, 16125, 16450, 17625, 18060, 19740, 20210, 21500, 22575, 23500, 24252, 24675, 28294, 30100, 30315, 32250, 32900, 35250, 37625, 40420, 41125, 42441, 45150, 49350, 50525, 56588, 60630, 64500, 70500, 70735, 75250, 82250, 84882, 90300, 98700, 101050, 112875, 121260, 123375, 141470, 150500, 151575, 164500, 169764, 202100, 212205, 225750, 246750, 252625, 282940, 303150, 353675, 424410, 451500, 493500, 505250, 606300, 707350, 757875, 848820, 1010500, 1061025, 1414700, 1515750, 1768375, 2122050, 3031500, 3536750, 4244100, 5305125, 7073500, 10610250, 21220500]

約数ペア:

[(1, 21220500), (2, 10610250), (3, 7073500), (4, 5305125), (5, 4244100), (6, 3536750), (7, 3031500), (10, 2122050), (12, 1768375), (14, 1515750), (15, 1414700), (20, 1061025), (21, 1010500), (25, 848820), (28, 757875), (30, 707350), (35, 606300), (42, 505250), (43, 493500), (47, 451500), (50, 424410), (60, 353675), (70, 303150), (75, 282940), (84, 252625), (86, 246750), (94, 225750), (100, 212205), (105, 202100), (125, 169764), (129, 164500), (140, 151575), (141, 150500), (150, 141470), (172, 123375), (175, 121260), (188, 112875), (210, 101050), (215, 98700), (235, 90300), (250, 84882), (258, 82250), (282, 75250), (300, 70735), (301, 70500), (329, 64500), (350, 60630), (375, 56588), (420, 50525), (430, 49350), (470, 45150), (500, 42441), (516, 41125), (525, 40420), (564, 37625), (602, 35250), (645, 32900), (658, 32250), (700, 30315), (705, 30100), (750, 28294), (860, 24675), (875, 24252), (903, 23500), (940, 22575), (987, 21500), (1050, 20210), (1075, 19740), (1175, 18060), (1204, 17625), (1290, 16450), (1316, 16125), (1410, 15050), (1500, 14147), (1505, 14100), (1645, 12900), (1750, 12126), (1806, 11750), (1974, 10750), (2021, 10500), (2100, 10105), (2150, 9870), (2350, 9030), (2580, 8225), (2625, 8084), (2820, 7525), (3010, 7050), (3225, 6580), (3290, 6450), (3500, 6063), (3525, 6020), (3612, 5875), (3948, 5375), (4042, 5250), (4300, 4935), (4515, 4700)]