678490071

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{397}}^1\times {\mathrm{839}}^1$

素因数の和:1343

約数の個数: 32

約数和(自身を含む): 1048427520

約数和(自身を除く): 369937449

約数列:

[1, 3, 7, 21, 97, 291, 397, 679, 839, 1191, 2037, 2517, 2779, 5873, 8337, 17619, 38509, 81383, 115527, 244149, 269563, 333083, 569681, 808689, 999249, 1709043, 2331581, 6994743, 32309051, 96927153, 226163357, 678490071]

約数ペア:

[(1, 678490071), (3, 226163357), (7, 96927153), (21, 32309051), (97, 6994743), (291, 2331581), (397, 1709043), (679, 999249), (839, 808689), (1191, 569681), (2037, 333083), (2517, 269563), (2779, 244149), (5873, 115527), (8337, 81383), (17619, 38509)]