39857727

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{20857}}^1$

素因数の和:20887

約数の個数: 24

約数和(自身を含む): 66578736

約数和(自身を除く): 26721009

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 20857, 62571, 145999, 271141, 437997, 813423, 1021993, 1897987, 3065979, 5693961, 13285909, 39857727]

約数ペア:

[(1, 39857727), (3, 13285909), (7, 5693961), (13, 3065979), (21, 1897987), (39, 1021993), (49, 813423), (91, 437997), (147, 271141), (273, 145999), (637, 62571), (1911, 20857)]