18018455

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^2$

素因数の和:423

約数の個数: 24

約数和(自身を含む): 26746272

約数和(自身を除く): 8727817

約数列:

[1, 5, 7, 13, 35, 65, 91, 199, 455, 995, 1393, 2587, 6965, 12935, 18109, 39601, 90545, 198005, 277207, 514813, 1386035, 2574065, 3603691, 18018455]

約数ペア:

[(1, 18018455), (5, 3603691), (7, 2574065), (13, 1386035), (35, 514813), (65, 277207), (91, 198005), (199, 90545), (455, 39601), (995, 18109), (1393, 12935), (2587, 6965)]