19940368

素因数分解:

$2^4\times 7^1\times {\mathrm{178039}}^1$

素因数の和:178054

約数の個数: 20

約数和(自身を含む): 44153920

約数和(自身を除く): 24213552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 178039, 356078, 712156, 1246273, 1424312, 2492546, 2848624, 4985092, 9970184, 19940368]

約数ペア:

[(1, 19940368), (2, 9970184), (4, 4985092), (7, 2848624), (8, 2492546), (14, 1424312), (16, 1246273), (28, 712156), (56, 356078), (112, 178039)]