81975957

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{607}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 128409600

約数和(自身を除く): 46433643

約数列:

[1, 3, 7, 21, 59, 109, 177, 327, 413, 607, 763, 1239, 1821, 2289, 4249, 6431, 12747, 19293, 35813, 45017, 66163, 107439, 135051, 198489, 250691, 463141, 752073, 1389423, 3903617, 11710851, 27325319, 81975957]

約数ペア:

[(1, 81975957), (3, 27325319), (7, 11710851), (21, 3903617), (59, 1389423), (109, 752073), (177, 463141), (327, 250691), (413, 198489), (607, 135051), (763, 107439), (1239, 66163), (1821, 45017), (2289, 35813), (4249, 19293), (6431, 12747)]