20998684

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20269}}^1$

素因数の和:20317

約数の個数: 24

約数和(自身を含む): 43134560

約数和(自身を除く): 22135876

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20269, 40538, 81076, 141883, 283766, 567532, 749953, 1499906, 2999812, 5249671, 10499342, 20998684]

約数ペア:

[(1, 20998684), (2, 10499342), (4, 5249671), (7, 2999812), (14, 1499906), (28, 749953), (37, 567532), (74, 283766), (148, 141883), (259, 81076), (518, 40538), (1036, 20269)]