31075947

素因数分解:

$3^3\times 7^2\times {\mathrm{83}}^1\times {\mathrm{283}}^1$

素因数の和:389

約数の個数: 48

約数和(自身を含む): 54391680

約数和(自身を除く): 23315733

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 83, 147, 189, 249, 283, 441, 581, 747, 849, 1323, 1743, 1981, 2241, 2547, 4067, 5229, 5943, 7641, 12201, 13867, 15687, 17829, 23489, 36603, 41601, 53487, 70467, 109809, 124803, 164423, 211401, 374409, 493269, 634203, 1150961, 1479807, 3452883, 4439421, 10358649, 31075947]

約数ペア:

[(1, 31075947), (3, 10358649), (7, 4439421), (9, 3452883), (21, 1479807), (27, 1150961), (49, 634203), (63, 493269), (83, 374409), (147, 211401), (189, 164423), (249, 124803), (283, 109809), (441, 70467), (581, 53487), (747, 41601), (849, 36603), (1323, 23489), (1743, 17829), (1981, 15687), (2241, 13867), (2547, 12201), (4067, 7641), (5229, 5943)]