19869381

素因数分解:

$3^5\times 7^1\times {\mathrm{11681}}^1$

素因数の和:11703

約数の個数: 24

約数和(自身を含む): 34017984

約数和(自身を除く): 14148603

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 11681, 35043, 81767, 105129, 245301, 315387, 735903, 946161, 2207709, 2838483, 6623127, 19869381]

約数ペア:

[(1, 19869381), (3, 6623127), (7, 2838483), (9, 2207709), (21, 946161), (27, 735903), (63, 315387), (81, 245301), (189, 105129), (243, 81767), (567, 35043), (1701, 11681)]