21279601

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{829}}^1$

素因数の和:1048

約数の個数: 16

約数和(自身を含む): 25763200

約数和(自身を除く): 4483599

約数列:

[1, 7, 19, 133, 193, 829, 1351, 3667, 5803, 15751, 25669, 110257, 159997, 1119979, 3039943, 21279601]

約数ペア:

[(1, 21279601), (7, 3039943), (19, 1119979), (133, 159997), (193, 110257), (829, 25669), (1351, 15751), (3667, 5803)]