16251291

素因数分解:

$3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{857}}^1$

素因数の和:920

約数の個数: 36

約数和(自身を含む): 27974232

約数和(自身を除く): 11722941

約数列:

[1, 3, 7, 9, 21, 43, 49, 63, 129, 147, 301, 387, 441, 857, 903, 2107, 2571, 2709, 5999, 6321, 7713, 17997, 18963, 36851, 41993, 53991, 110553, 125979, 257957, 331659, 377937, 773871, 1805699, 2321613, 5417097, 16251291]

約数ペア:

[(1, 16251291), (3, 5417097), (7, 2321613), (9, 1805699), (21, 773871), (43, 377937), (49, 331659), (63, 257957), (129, 125979), (147, 110553), (301, 53991), (387, 41993), (441, 36851), (857, 18963), (903, 17997), (2107, 7713), (2571, 6321), (2709, 5999)]