81741513

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{409}}^1$

素因数の和:757

約数の個数: 32

約数和(自身を含む): 129310720

約数和(自身を除く): 47569207

約数列:

[1, 3, 7, 21, 31, 93, 217, 307, 409, 651, 921, 1227, 2149, 2863, 6447, 8589, 9517, 12679, 28551, 38037, 66619, 88753, 125563, 199857, 266259, 376689, 878941, 2636823, 3892453, 11677359, 27247171, 81741513]

約数ペア:

[(1, 81741513), (3, 27247171), (7, 11677359), (21, 3892453), (31, 2636823), (93, 878941), (217, 376689), (307, 266259), (409, 199857), (651, 125563), (921, 88753), (1227, 66619), (2149, 38037), (2863, 28551), (6447, 12679), (8589, 9517)]