251183439

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^3\times {\mathrm{313}}^1$

素因数の和:389

約数の個数: 48

約数和(自身を含む): 413751520

約数和(自身を除く): 162568081

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 313, 361, 741, 939, 1083, 2223, 2817, 3249, 4069, 4693, 5947, 6859, 12207, 14079, 17841, 20577, 36621, 42237, 53523, 61731, 77311, 89167, 112993, 231933, 267501, 338979, 695799, 802503, 1016937, 1468909, 2146867, 4406727, 6440601, 13220181, 19321803, 27909271, 83727813, 251183439]

約数ペア:

[(1, 251183439), (3, 83727813), (9, 27909271), (13, 19321803), (19, 13220181), (39, 6440601), (57, 4406727), (117, 2146867), (171, 1468909), (247, 1016937), (313, 802503), (361, 695799), (741, 338979), (939, 267501), (1083, 231933), (2223, 112993), (2817, 89167), (3249, 77311), (4069, 61731), (4693, 53523), (5947, 42237), (6859, 36621), (12207, 20577), (14079, 17841)]