131275557

素因数分解:

$3^2\times 7^2\times {\mathrm{179}}^1\times {\mathrm{1663}}^1$

素因数の和:1862

約数の個数: 36

約数和(自身を含む): 221944320

約数和(自身を除く): 90668763

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 179, 441, 537, 1253, 1611, 1663, 3759, 4989, 8771, 11277, 11641, 14967, 26313, 34923, 78939, 81487, 104769, 244461, 297677, 733383, 893031, 2083739, 2679093, 6251217, 14586173, 18753651, 43758519, 131275557]

約数ペア:

[(1, 131275557), (3, 43758519), (7, 18753651), (9, 14586173), (21, 6251217), (49, 2679093), (63, 2083739), (147, 893031), (179, 733383), (441, 297677), (537, 244461), (1253, 104769), (1611, 81487), (1663, 78939), (3759, 34923), (4989, 26313), (8771, 14967), (11277, 11641)]