7980287

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:207

約数の個数: 24

約数和(自身を含む): 9920736

約数和(自身を除く): 1940449

約数列:

[1, 7, 23, 49, 73, 97, 161, 511, 679, 1127, 1679, 2231, 3577, 4753, 7081, 11753, 15617, 49567, 82271, 109319, 162863, 346969, 1140041, 7980287]

約数ペア:

[(1, 7980287), (7, 1140041), (23, 346969), (49, 162863), (73, 109319), (97, 82271), (161, 49567), (511, 15617), (679, 11753), (1127, 7081), (1679, 4753), (2231, 3577)]