19937776

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{26513}}^1$

素因数の和:26568

約数の個数: 20

約数和(自身を含む): 39452832

約数和(自身を除く): 19515056

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 26513, 53026, 106052, 212104, 424208, 1246111, 2492222, 4984444, 9968888, 19937776]

約数ペア:

[(1, 19937776), (2, 9968888), (4, 4984444), (8, 2492222), (16, 1246111), (47, 424208), (94, 212104), (188, 106052), (376, 53026), (752, 26513)]