21812280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1129}}^1$

素因数の和:1173

約数の個数: 128

約数和(自身を含む): 78105600

約数和(自身を除く): 56293320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 276, 280, 322, 345, 420, 460, 483, 552, 644, 690, 805, 840, 920, 966, 1129, 1288, 1380, 1610, 1932, 2258, 2415, 2760, 3220, 3387, 3864, 4516, 4830, 5645, 6440, 6774, 7903, 9032, 9660, 11290, 13548, 15806, 16935, 19320, 22580, 23709, 25967, 27096, 31612, 33870, 39515, 45160, 47418, 51934, 63224, 67740, 77901, 79030, 94836, 103868, 118545, 129835, 135480, 155802, 158060, 181769, 189672, 207736, 237090, 259670, 311604, 316120, 363538, 389505, 474180, 519340, 545307, 623208, 727076, 779010, 908845, 948360, 1038680, 1090614, 1454152, 1558020, 1817690, 2181228, 2726535, 3116040, 3635380, 4362456, 5453070, 7270760, 10906140, 21812280]

約数ペア:

[(1, 21812280), (2, 10906140), (3, 7270760), (4, 5453070), (5, 4362456), (6, 3635380), (7, 3116040), (8, 2726535), (10, 2181228), (12, 1817690), (14, 1558020), (15, 1454152), (20, 1090614), (21, 1038680), (23, 948360), (24, 908845), (28, 779010), (30, 727076), (35, 623208), (40, 545307), (42, 519340), (46, 474180), (56, 389505), (60, 363538), (69, 316120), (70, 311604), (84, 259670), (92, 237090), (105, 207736), (115, 189672), (120, 181769), (138, 158060), (140, 155802), (161, 135480), (168, 129835), (184, 118545), (210, 103868), (230, 94836), (276, 79030), (280, 77901), (322, 67740), (345, 63224), (420, 51934), (460, 47418), (483, 45160), (552, 39515), (644, 33870), (690, 31612), (805, 27096), (840, 25967), (920, 23709), (966, 22580), (1129, 19320), (1288, 16935), (1380, 15806), (1610, 13548), (1932, 11290), (2258, 9660), (2415, 9032), (2760, 7903), (3220, 6774), (3387, 6440), (3864, 5645), (4516, 4830)]