28663089

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 48952512

約数和(自身を除く): 20289423

約数列:

[1, 3, 7, 13, 21, 39, 49, 53, 91, 147, 159, 273, 283, 371, 637, 689, 849, 1113, 1911, 1981, 2067, 2597, 3679, 4823, 5943, 7791, 11037, 13867, 14469, 14999, 25753, 33761, 41601, 44997, 77259, 101283, 104993, 180271, 194987, 314979, 540813, 584961, 734951, 1364909, 2204853, 4094727, 9554363, 28663089]

約数ペア:

[(1, 28663089), (3, 9554363), (7, 4094727), (13, 2204853), (21, 1364909), (39, 734951), (49, 584961), (53, 540813), (91, 314979), (147, 194987), (159, 180271), (273, 104993), (283, 101283), (371, 77259), (637, 44997), (689, 41601), (849, 33761), (1113, 25753), (1911, 14999), (1981, 14469), (2067, 13867), (2597, 11037), (3679, 7791), (4823, 5943)]