21633920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1$

素因数の和:476

約数の個数: 128

約数和(自身を含む): 64627200

約数和(自身を除く): 42993280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 128, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 385, 439, 440, 448, 560, 616, 640, 704, 770, 878, 880, 896, 1120, 1232, 1408, 1540, 1756, 1760, 2195, 2240, 2464, 3073, 3080, 3512, 3520, 4390, 4480, 4829, 4928, 6146, 6160, 7024, 7040, 8780, 9658, 9856, 12292, 12320, 14048, 15365, 17560, 19316, 24145, 24584, 24640, 28096, 30730, 33803, 35120, 38632, 48290, 49168, 49280, 56192, 61460, 67606, 70240, 77264, 96580, 98336, 122920, 135212, 140480, 154528, 169015, 193160, 196672, 245840, 270424, 280960, 309056, 338030, 386320, 393344, 491680, 540848, 618112, 676060, 772640, 983360, 1081696, 1352120, 1545280, 1966720, 2163392, 2704240, 3090560, 4326784, 5408480, 10816960, 21633920]

約数ペア:

[(1, 21633920), (2, 10816960), (4, 5408480), (5, 4326784), (7, 3090560), (8, 2704240), (10, 2163392), (11, 1966720), (14, 1545280), (16, 1352120), (20, 1081696), (22, 983360), (28, 772640), (32, 676060), (35, 618112), (40, 540848), (44, 491680), (55, 393344), (56, 386320), (64, 338030), (70, 309056), (77, 280960), (80, 270424), (88, 245840), (110, 196672), (112, 193160), (128, 169015), (140, 154528), (154, 140480), (160, 135212), (176, 122920), (220, 98336), (224, 96580), (280, 77264), (308, 70240), (320, 67606), (352, 61460), (385, 56192), (439, 49280), (440, 49168), (448, 48290), (560, 38632), (616, 35120), (640, 33803), (704, 30730), (770, 28096), (878, 24640), (880, 24584), (896, 24145), (1120, 19316), (1232, 17560), (1408, 15365), (1540, 14048), (1756, 12320), (1760, 12292), (2195, 9856), (2240, 9658), (2464, 8780), (3073, 7040), (3080, 7024), (3512, 6160), (3520, 6146), (4390, 4928), (4480, 4829)]