51087813

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{233}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 80061696

約数和(自身を除く): 28973883

約数列:

[1, 3, 7, 21, 53, 159, 197, 233, 371, 591, 699, 1113, 1379, 1631, 4137, 4893, 10441, 12349, 31323, 37047, 45901, 73087, 86443, 137703, 219261, 259329, 321307, 963921, 2432753, 7298259, 17029271, 51087813]

約数ペア:

[(1, 51087813), (3, 17029271), (7, 7298259), (21, 2432753), (53, 963921), (159, 321307), (197, 259329), (233, 219261), (371, 137703), (591, 86443), (699, 73087), (1113, 45901), (1379, 37047), (1631, 31323), (4137, 12349), (4893, 10441)]