19907127

素因数分解:

$3^4\times {\mathrm{179}}^1\times {\mathrm{1373}}^1$

素因数の和:1564

約数の個数: 20

約数和(自身を含む): 29925720

約数和(自身を除く): 10018593

約数列:

[1, 3, 9, 27, 81, 179, 537, 1373, 1611, 4119, 4833, 12357, 14499, 37071, 111213, 245767, 737301, 2211903, 6635709, 19907127]

約数ペア:

[(1, 19907127), (3, 6635709), (9, 2211903), (27, 737301), (81, 245767), (179, 111213), (537, 37071), (1373, 14499), (1611, 12357), (4119, 4833)]