21371569210

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1\times {\mathrm{286367}}^1$

素因数の和:286830

約数の個数: 32

約数和(自身を含む): 40824622080

約数和(自身を除く): 19453052870

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 439, 878, 2195, 4390, 7463, 14926, 37315, 74630, 286367, 572734, 1431835, 2863670, 4868239, 9736478, 24341195, 48682390, 125715113, 251430226, 628575565, 1257151130, 2137156921, 4274313842, 10685784605, 21371569210]

約数ペア:

[(1, 21371569210), (2, 10685784605), (5, 4274313842), (10, 2137156921), (17, 1257151130), (34, 628575565), (85, 251430226), (170, 125715113), (439, 48682390), (878, 24341195), (2195, 9736478), (4390, 4868239), (7463, 2863670), (14926, 1431835), (37315, 572734), (74630, 286367)]