20721856

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{17041}}^1$

素因数の和:17072

約数の個数: 28

約数和(自身を含む): 43286680

約数和(自身を除く): 22564824

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 608, 1216, 17041, 34082, 68164, 136328, 272656, 323779, 545312, 647558, 1090624, 1295116, 2590232, 5180464, 10360928, 20721856]

約数ペア:

[(1, 20721856), (2, 10360928), (4, 5180464), (8, 2590232), (16, 1295116), (19, 1090624), (32, 647558), (38, 545312), (64, 323779), (76, 272656), (152, 136328), (304, 68164), (608, 34082), (1216, 17041)]