78876721

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2399}}^1$

素因数の和:2485

約数の個数: 24

約数和(自身を含む): 101779200

約数和(自身を除く): 22902479

約数列:

[1, 7, 11, 49, 61, 77, 427, 539, 671, 2399, 2989, 4697, 16793, 26389, 32879, 117551, 146339, 184723, 1024373, 1293061, 1609729, 7170611, 11268103, 78876721]

約数ペア:

[(1, 78876721), (7, 11268103), (11, 7170611), (49, 1609729), (61, 1293061), (77, 1024373), (427, 184723), (539, 146339), (671, 117551), (2399, 32879), (2989, 26389), (4697, 16793)]