51980679

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{7901}}^1$

素因数の和:7967

約数の個数: 24

約数和(自身を含む): 81358992

約数和(自身を除く): 29378313

約数列:

[1, 3, 9, 17, 43, 51, 129, 153, 387, 731, 2193, 6579, 7901, 23703, 71109, 134317, 339743, 402951, 1019229, 1208853, 3057687, 5775631, 17326893, 51980679]

約数ペア:

[(1, 51980679), (3, 17326893), (9, 5775631), (17, 3057687), (43, 1208853), (51, 1019229), (129, 402951), (153, 339743), (387, 134317), (731, 71109), (2193, 23703), (6579, 7901)]