21471443

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{691}}^1$

素因数の和:914

約数の個数: 16

約数和(自身を含む): 25775616

約数和(自身を除く): 4304173

約数列:

[1, 7, 23, 161, 193, 691, 1351, 4439, 4837, 15893, 31073, 111251, 133363, 933541, 3067349, 21471443]

約数ペア:

[(1, 21471443), (7, 3067349), (23, 933541), (161, 133363), (193, 111251), (691, 31073), (1351, 15893), (4439, 4837)]