67798913

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 84607488

約数和(自身を除く): 16808575

約数列:

[1, 7, 13, 91, 169, 223, 257, 1183, 1561, 1799, 2899, 3341, 20293, 23387, 37687, 43433, 57311, 263809, 304031, 401177, 745043, 5215301, 9685559, 67798913]

約数ペア:

[(1, 67798913), (7, 9685559), (13, 5215301), (91, 745043), (169, 401177), (223, 304031), (257, 263809), (1183, 57311), (1561, 43433), (1799, 37687), (2899, 23387), (3341, 20293)]