81279121

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{607}}^1$

素因数の和:709

約数の個数: 32

約数和(自身を含む): 106463232

約数和(自身を除く): 25184111

約数列:

[1, 7, 11, 37, 47, 77, 259, 329, 407, 517, 607, 1739, 2849, 3619, 4249, 6677, 12173, 19129, 22459, 28529, 46739, 133903, 157213, 199703, 247049, 313819, 1055573, 1729343, 2196733, 7389011, 11611303, 81279121]

約数ペア:

[(1, 81279121), (7, 11611303), (11, 7389011), (37, 2196733), (47, 1729343), (77, 1055573), (259, 313819), (329, 247049), (407, 199703), (517, 157213), (607, 133903), (1739, 46739), (2849, 28529), (3619, 22459), (4249, 19129), (6677, 12173)]