19810098201621

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4268497781}}^1$

素因数の和:4268497821

約数の個数: 32

約数和(自身を含む): 34421166114048

約数和(自身を除く): 14611067912427

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 4641, 4268497781, 12805493343, 29879484467, 55490471153, 72564462277, 89638453401, 166471413459, 217693386831, 388433298071, 507951235939, 943338009601, 1165299894213, 1523853707817, 2830014028803, 6603366067207, 19810098201621]

約数ペア:

[(1, 19810098201621), (3, 6603366067207), (7, 2830014028803), (13, 1523853707817), (17, 1165299894213), (21, 943338009601), (39, 507951235939), (51, 388433298071), (91, 217693386831), (119, 166471413459), (221, 89638453401), (273, 72564462277), (357, 55490471153), (663, 29879484467), (1547, 12805493343), (4641, 4268497781)]