51251991

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{20509}}^1$

素因数の和:20543

約数の個数: 24

約数和(自身を含む): 84173040

約数和(自身を除く): 32921049

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 20509, 61527, 143563, 348653, 430689, 1004941, 1045959, 2440571, 3014823, 7321713, 17083997, 51251991]

約数ペア:

[(1, 51251991), (3, 17083997), (7, 7321713), (17, 3014823), (21, 2440571), (49, 1045959), (51, 1004941), (119, 430689), (147, 348653), (357, 143563), (833, 61527), (2499, 20509)]