251498547

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{311}}^1\times {\mathrm{491}}^1$

素因数の和:872

約数の個数: 32

約数和(自身を含む): 380689920

約数和(自身を除く): 129191373

約数列:

[1, 3, 9, 27, 61, 183, 311, 491, 549, 933, 1473, 1647, 2799, 4419, 8397, 13257, 18971, 29951, 56913, 89853, 152701, 170739, 269559, 458103, 512217, 808677, 1374309, 4122927, 9314761, 27944283, 83832849, 251498547]

約数ペア:

[(1, 251498547), (3, 83832849), (9, 27944283), (27, 9314761), (61, 4122927), (183, 1374309), (311, 808677), (491, 512217), (549, 458103), (933, 269559), (1473, 170739), (1647, 152701), (2799, 89853), (4419, 56913), (8397, 29951), (13257, 18971)]