216997391

素因数分解:

${\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1\times {\mathrm{2137}}^1$

素因数の和:2330

約数の個数: 16

約数和(自身を含む): 239216544

約数和(自身を除く): 22219153

約数列:

[1, 13, 73, 107, 949, 1391, 2137, 7811, 27781, 101543, 156001, 228659, 2028013, 2972567, 16692107, 216997391]

約数ペア:

[(1, 216997391), (13, 16692107), (73, 2972567), (107, 2028013), (949, 228659), (1391, 156001), (2137, 101543), (7811, 27781)]