19925552

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{42943}}^1$

素因数の和:42980

約数の個数: 20

約数和(自身を含む): 39937920

約数和(自身を除く): 20012368

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 42943, 85886, 171772, 343544, 687088, 1245347, 2490694, 4981388, 9962776, 19925552]

約数ペア:

[(1, 19925552), (2, 9962776), (4, 4981388), (8, 2490694), (16, 1245347), (29, 687088), (58, 343544), (116, 171772), (232, 85886), (464, 42943)]