21330064

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^2\times {\mathrm{103}}^1$

素因数の和:204

約数の個数: 60

約数和(自身を含む): 48824256

約数和(自身を除く): 27494192

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 103, 112, 172, 206, 301, 344, 412, 602, 688, 721, 824, 1204, 1442, 1648, 1849, 2408, 2884, 3698, 4429, 4816, 5768, 7396, 8858, 11536, 12943, 14792, 17716, 25886, 29584, 31003, 35432, 51772, 62006, 70864, 103544, 124012, 190447, 207088, 248024, 380894, 496048, 761788, 1333129, 1523576, 2666258, 3047152, 5332516, 10665032, 21330064]

約数ペア:

[(1, 21330064), (2, 10665032), (4, 5332516), (7, 3047152), (8, 2666258), (14, 1523576), (16, 1333129), (28, 761788), (43, 496048), (56, 380894), (86, 248024), (103, 207088), (112, 190447), (172, 124012), (206, 103544), (301, 70864), (344, 62006), (412, 51772), (602, 35432), (688, 31003), (721, 29584), (824, 25886), (1204, 17716), (1442, 14792), (1648, 12943), (1849, 11536), (2408, 8858), (2884, 7396), (3698, 5768), (4429, 4816)]