21773479

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 28514304

約数和(自身を除く): 6740825

約数列:

[1, 7, 13, 23, 91, 101, 103, 161, 299, 707, 721, 1313, 1339, 2093, 2323, 2369, 9191, 9373, 10403, 16261, 16583, 30199, 30797, 72821, 135239, 211393, 215579, 239269, 946673, 1674883, 3110497, 21773479]

約数ペア:

[(1, 21773479), (7, 3110497), (13, 1674883), (23, 946673), (91, 239269), (101, 215579), (103, 211393), (161, 135239), (299, 72821), (707, 30797), (721, 30199), (1313, 16583), (1339, 16261), (2093, 10403), (2323, 9373), (2369, 9191)]