21506842

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41519}}^1$

素因数の和:41565

約数の個数: 16

約数和(自身を含む): 37866240

約数和(自身を除く): 16359398

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 41519, 83038, 290633, 581266, 1536203, 3072406, 10753421, 21506842]

約数ペア:

[(1, 21506842), (2, 10753421), (7, 3072406), (14, 1536203), (37, 581266), (74, 290633), (259, 83038), (518, 41519)]