20780109

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{14341}}^1$

素因数の和:14377

約数の個数: 24

約数和(自身を含む): 35797632

約数和(自身を除く): 15017523

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 14341, 43023, 100387, 129069, 301161, 329843, 903483, 989529, 2308901, 2968587, 6926703, 20780109]

約数ペア:

[(1, 20780109), (3, 6926703), (7, 2968587), (9, 2308901), (21, 989529), (23, 903483), (63, 329843), (69, 301161), (161, 129069), (207, 100387), (483, 43023), (1449, 14341)]