207979681

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^2\times {\mathrm{487}}^1$

素因数の和:558

約数の個数: 36

約数和(自身を含む): 272198592

約数和(自身を除く): 64218911

約数列:

[1, 7, 13, 19, 91, 133, 169, 247, 361, 487, 1183, 1729, 2527, 3211, 3409, 4693, 6331, 9253, 22477, 32851, 44317, 61009, 64771, 82303, 120289, 175807, 427063, 576121, 842023, 1230649, 1563757, 2285491, 10946299, 15998437, 29711383, 207979681]

約数ペア:

[(1, 207979681), (7, 29711383), (13, 15998437), (19, 10946299), (91, 2285491), (133, 1563757), (169, 1230649), (247, 842023), (361, 576121), (487, 427063), (1183, 175807), (1729, 120289), (2527, 82303), (3211, 64771), (3409, 61009), (4693, 44317), (6331, 32851), (9253, 22477)]