128217123

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{389}}^1\times {\mathrm{691}}^1$

素因数の和:1139

約数の個数: 24

約数和(自身を含む): 189455760

約数和(自身を除く): 61238637

約数列:

[1, 3, 9, 53, 159, 389, 477, 691, 1167, 2073, 3501, 6219, 20617, 36623, 61851, 109869, 185553, 268799, 329607, 806397, 2419191, 14246347, 42739041, 128217123]

約数ペア:

[(1, 128217123), (3, 42739041), (9, 14246347), (53, 2419191), (159, 806397), (389, 329607), (477, 268799), (691, 185553), (1167, 109869), (2073, 61851), (3501, 36623), (6219, 20617)]