21897139

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6163}}^1$

素因数の和:6210

約数の個数: 16

約数和(自身を含む): 26628480

約数和(自身を除く): 4731341

約数列:

[1, 11, 17, 19, 187, 209, 323, 3553, 6163, 67793, 104771, 117097, 1152481, 1288067, 1990649, 21897139]

約数ペア:

[(1, 21897139), (11, 1990649), (17, 1288067), (19, 1152481), (187, 117097), (209, 104771), (323, 67793), (3553, 6163)]