21136360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:203

約数の個数: 128

約数和(自身を含む): 59616000

約数和(自身を除く): 38479640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 29, 35, 38, 40, 56, 58, 70, 76, 95, 116, 133, 137, 140, 145, 152, 190, 203, 232, 266, 274, 280, 290, 380, 406, 532, 548, 551, 580, 665, 685, 760, 812, 959, 1015, 1064, 1096, 1102, 1160, 1330, 1370, 1624, 1918, 2030, 2204, 2603, 2660, 2740, 2755, 3836, 3857, 3973, 4060, 4408, 4795, 5206, 5320, 5480, 5510, 7672, 7714, 7946, 8120, 9590, 10412, 11020, 13015, 15428, 15892, 18221, 19180, 19285, 19865, 20824, 22040, 26030, 27811, 30856, 31784, 36442, 38360, 38570, 39730, 52060, 55622, 72884, 75487, 77140, 79460, 91105, 104120, 111244, 139055, 145768, 150974, 154280, 158920, 182210, 222488, 278110, 301948, 364420, 377435, 528409, 556220, 603896, 728840, 754870, 1056818, 1112440, 1509740, 2113636, 2642045, 3019480, 4227272, 5284090, 10568180, 21136360]

約数ペア:

[(1, 21136360), (2, 10568180), (4, 5284090), (5, 4227272), (7, 3019480), (8, 2642045), (10, 2113636), (14, 1509740), (19, 1112440), (20, 1056818), (28, 754870), (29, 728840), (35, 603896), (38, 556220), (40, 528409), (56, 377435), (58, 364420), (70, 301948), (76, 278110), (95, 222488), (116, 182210), (133, 158920), (137, 154280), (140, 150974), (145, 145768), (152, 139055), (190, 111244), (203, 104120), (232, 91105), (266, 79460), (274, 77140), (280, 75487), (290, 72884), (380, 55622), (406, 52060), (532, 39730), (548, 38570), (551, 38360), (580, 36442), (665, 31784), (685, 30856), (760, 27811), (812, 26030), (959, 22040), (1015, 20824), (1064, 19865), (1096, 19285), (1102, 19180), (1160, 18221), (1330, 15892), (1370, 15428), (1624, 13015), (1918, 11020), (2030, 10412), (2204, 9590), (2603, 8120), (2660, 7946), (2740, 7714), (2755, 7672), (3836, 5510), (3857, 5480), (3973, 5320), (4060, 5206), (4408, 4795)]