31246887

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1103}}^1$

素因数の和:1203

約数の個数: 32

約数和(自身を含む): 50872320

約数和(自身を除く): 19625433

約数列:

[1, 3, 7, 19, 21, 57, 71, 133, 213, 399, 497, 1103, 1349, 1491, 3309, 4047, 7721, 9443, 20957, 23163, 28329, 62871, 78313, 146699, 234939, 440097, 548191, 1487947, 1644573, 4463841, 10415629, 31246887]

約数ペア:

[(1, 31246887), (3, 10415629), (7, 4463841), (19, 1644573), (21, 1487947), (57, 548191), (71, 440097), (133, 234939), (213, 146699), (399, 78313), (497, 62871), (1103, 28329), (1349, 23163), (1491, 20957), (3309, 9443), (4047, 7721)]