21260127

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{9829}}^1$

素因数の和:9942

約数の個数: 16

約数和(自身を含む): 32714240

約数和(自身を除く): 11454113

約数列:

[1, 3, 7, 21, 103, 309, 721, 2163, 9829, 29487, 68803, 206409, 1012387, 3037161, 7086709, 21260127]

約数ペア:

[(1, 21260127), (3, 7086709), (7, 3037161), (21, 1012387), (103, 206409), (309, 68803), (721, 29487), (2163, 9829)]