20561842

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{31249}}^1$

素因数の和:31305

約数の個数: 16

約数和(自身を含む): 36000000

約数和(自身を除く): 15438158

約数列:

[1, 2, 7, 14, 47, 94, 329, 658, 31249, 62498, 218743, 437486, 1468703, 2937406, 10280921, 20561842]

約数ペア:

[(1, 20561842), (2, 10280921), (7, 2937406), (14, 1468703), (47, 437486), (94, 218743), (329, 62498), (658, 31249)]