19538739

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{21929}}^1$

素因数の和:21952

約数の個数: 20

約数和(自身を含む): 31842360

約数和(自身を除く): 12303621

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 21929, 65787, 197361, 241219, 592083, 723657, 1776249, 2170971, 6512913, 19538739]

約数ペア:

[(1, 19538739), (3, 6512913), (9, 2170971), (11, 1776249), (27, 723657), (33, 592083), (81, 241219), (99, 197361), (297, 65787), (891, 21929)]