7218393

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 11993856

約数和(自身を除く): 4775463

約数列:

[1, 3, 7, 13, 21, 39, 91, 137, 193, 273, 411, 579, 959, 1351, 1781, 2509, 2877, 4053, 5343, 7527, 12467, 17563, 26441, 37401, 52689, 79323, 185087, 343733, 555261, 1031199, 2406131, 7218393]

約数ペア:

[(1, 7218393), (3, 2406131), (7, 1031199), (13, 555261), (21, 343733), (39, 185087), (91, 79323), (137, 52689), (193, 37401), (273, 26441), (411, 17563), (579, 12467), (959, 7527), (1351, 5343), (1781, 4053), (2509, 2877)]