221489807

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{77743}}^1$

素因数の和:77798

約数の個数: 16

約数和(自身を含む): 283610112

約数和(自身を除く): 62120305

約数列:

[1, 7, 11, 37, 77, 259, 407, 2849, 77743, 544201, 855173, 2876491, 5986211, 20135437, 31641401, 221489807]

約数ペア:

[(1, 221489807), (7, 31641401), (11, 20135437), (37, 5986211), (77, 2876491), (259, 855173), (407, 544201), (2849, 77743)]