21060368

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4373}}^1$

素因数の和:4431

約数の個数: 40

約数和(自身を含む): 47729088

約数和(自身を除く): 26668720

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 4373, 4816, 8746, 17492, 30611, 34984, 61222, 69968, 122444, 188039, 244888, 376078, 489776, 752156, 1316273, 1504312, 2632546, 3008624, 5265092, 10530184, 21060368]

約数ペア:

[(1, 21060368), (2, 10530184), (4, 5265092), (7, 3008624), (8, 2632546), (14, 1504312), (16, 1316273), (28, 752156), (43, 489776), (56, 376078), (86, 244888), (112, 188039), (172, 122444), (301, 69968), (344, 61222), (602, 34984), (688, 30611), (1204, 17492), (2408, 8746), (4373, 4816)]