989290421

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1\times {\mathrm{607}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 1210318848

約数和(自身を除く): 221028427

約数列:

[1, 7, 23, 53, 161, 191, 371, 607, 1219, 1337, 4249, 4393, 8533, 10123, 13961, 30751, 32171, 70861, 97727, 115937, 225197, 232829, 739933, 811559, 1629803, 2666551, 5179531, 6144661, 18665857, 43012627, 141327203, 989290421]

約数ペア:

[(1, 989290421), (7, 141327203), (23, 43012627), (53, 18665857), (161, 6144661), (191, 5179531), (371, 2666551), (607, 1629803), (1219, 811559), (1337, 739933), (4249, 232829), (4393, 225197), (8533, 115937), (10123, 97727), (13961, 70861), (30751, 32171)]