42639219

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{6571}}^1$

素因数の和:6687

約数の個数: 24

約数和(自身を含む): 71082752

約数和(自身を除く): 28443533

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 6489, 6571, 19713, 45997, 59139, 137991, 413973, 676813, 2030439, 4737691, 6091317, 14213073, 42639219]

約数ペア:

[(1, 42639219), (3, 14213073), (7, 6091317), (9, 4737691), (21, 2030439), (63, 676813), (103, 413973), (309, 137991), (721, 59139), (927, 45997), (2163, 19713), (6489, 6571)]