78741971

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1051}}^1$

素因数の和:1215

約数の個数: 24

約数和(自身を含む): 100739520

約数和(自身を除く): 21997549

約数列:

[1, 7, 11, 49, 77, 139, 539, 973, 1051, 1529, 6811, 7357, 10703, 11561, 51499, 74921, 80927, 146089, 566489, 1022623, 1606979, 7158361, 11248853, 78741971]

約数ペア:

[(1, 78741971), (7, 11248853), (11, 7158361), (49, 1606979), (77, 1022623), (139, 566489), (539, 146089), (973, 80927), (1051, 74921), (1529, 51499), (6811, 11561), (7357, 10703)]