20981514

素因数分解:

$2^1\times 3^1\times {\mathrm{73}}^1\times {\mathrm{47903}}^1$

素因数の和:47981

約数の個数: 16

約数和(自身を含む): 42538752

約数和(自身を除く): 21557238

約数列:

[1, 2, 3, 6, 73, 146, 219, 438, 47903, 95806, 143709, 287418, 3496919, 6993838, 10490757, 20981514]

約数ペア:

[(1, 20981514), (2, 10490757), (3, 6993838), (6, 3496919), (73, 287418), (146, 143709), (219, 95806), (438, 47903)]