21152922756329

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{1979}}^1\times {\mathrm{301949}}^1$

素因数の和:304337

約数の個数: 32

約数和(自身を含む): 26114568480000

約数和(自身を除く): 4961645723671

約数列:

[1, 7, 13, 91, 389, 1979, 2723, 5057, 13853, 25727, 35399, 180089, 301949, 769831, 2113643, 3925337, 5388817, 10007803, 27477359, 70054621, 117458161, 597557071, 822207127, 1526956093, 4182899497, 7768241923, 10688692651, 54377693461, 232449700619, 1627147904333, 3021846108047, 21152922756329]

約数ペア:

[(1, 21152922756329), (7, 3021846108047), (13, 1627147904333), (91, 232449700619), (389, 54377693461), (1979, 10688692651), (2723, 7768241923), (5057, 4182899497), (13853, 1526956093), (25727, 822207127), (35399, 597557071), (180089, 117458161), (301949, 70054621), (769831, 27477359), (2113643, 10007803), (3925337, 5388817)]