720293721

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{339601}}^1$

素因数の和:339712

約数の個数: 16

約数和(自身を含む): 1108460928

約数和(自身を除く): 388167207

約数列:

[1, 3, 7, 21, 101, 303, 707, 2121, 339601, 1018803, 2377207, 7131621, 34299701, 102899103, 240097907, 720293721]

約数ペア:

[(1, 720293721), (3, 240097907), (7, 102899103), (21, 34299701), (101, 7131621), (303, 2377207), (707, 1018803), (2121, 339601)]