20381319

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17027}}^1$

素因数の和:17059

約数の個数: 24

約数和(自身を含む): 35418240

約数和(自身を除く): 15036921

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 17027, 51081, 119189, 153243, 323513, 357567, 970539, 1072701, 2264591, 2911617, 6793773, 20381319]

約数ペア:

[(1, 20381319), (3, 6793773), (7, 2911617), (9, 2264591), (19, 1072701), (21, 970539), (57, 357567), (63, 323513), (133, 153243), (171, 119189), (399, 51081), (1197, 17027)]