21342080

素因数分解:

$2^7\times 5^1\times {\mathrm{33347}}^1$

素因数の和:33366

約数の個数: 32

約数和(自身を含む): 51022440

約数和(自身を除く): 29680360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 33347, 66694, 133388, 166735, 266776, 333470, 533552, 666940, 1067104, 1333880, 2134208, 2667760, 4268416, 5335520, 10671040, 21342080]

約数ペア:

[(1, 21342080), (2, 10671040), (4, 5335520), (5, 4268416), (8, 2667760), (10, 2134208), (16, 1333880), (20, 1067104), (32, 666940), (40, 533552), (64, 333470), (80, 266776), (128, 166735), (160, 133388), (320, 66694), (640, 33347)]