221279758

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{427181}}^1$

素因数の和:427227

約数の個数: 16

約数和(自身を含む): 389589984

約数和(自身を除く): 168310226

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 427181, 854362, 2990267, 5980534, 15805697, 31611394, 110639879, 221279758]

約数ペア:

[(1, 221279758), (2, 110639879), (7, 31611394), (14, 15805697), (37, 5980534), (74, 2990267), (259, 854362), (518, 427181)]