21000314888

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{8721061}}^1$

素因数の和:8721117

約数の個数: 32

約数和(自身を含む): 46047207360

約数和(自身を除く): 25046892472

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 8721061, 17442122, 34884244, 61047427, 69768488, 122094854, 244189708, 375005623, 488379416, 750011246, 1500022492, 2625039361, 3000044984, 5250078722, 10500157444, 21000314888]

約数ペア:

[(1, 21000314888), (2, 10500157444), (4, 5250078722), (7, 3000044984), (8, 2625039361), (14, 1500022492), (28, 750011246), (43, 488379416), (56, 375005623), (86, 244189708), (172, 122094854), (301, 69768488), (344, 61047427), (602, 34884244), (1204, 17442122), (2408, 8721061)]