21167109

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{11701}}^1$

素因数の和:11777

約数の個数: 16

約数和(自身を含む): 31829440

約数和(自身を除く): 10662331

約数列:

[1, 3, 9, 27, 67, 201, 603, 1809, 11701, 35103, 105309, 315927, 783967, 2351901, 7055703, 21167109]

約数ペア:

[(1, 21167109), (3, 7055703), (9, 2351901), (27, 783967), (67, 315927), (201, 105309), (603, 35103), (1809, 11701)]