398901471682

素因数分解:

$2^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{293741879}}^1$

素因数の和:293741985

約数の個数: 16

約数和(自身を含む): 690880901760

約数和(自身を除く): 291979430078

約数列:

[1, 2, 7, 14, 97, 194, 679, 1358, 293741879, 587483758, 2056193153, 4112386306, 28492962263, 56985924526, 199450735841, 398901471682]

約数ペア:

[(1, 398901471682), (2, 199450735841), (7, 56985924526), (14, 28492962263), (97, 4112386306), (194, 2056193153), (679, 587483758), (1358, 293741879)]