18083975

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7949}}^1$

素因数の和:7979

約数の個数: 24

約数和(自身を含む): 27602400

約数和(自身を除く): 9518425

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 7949, 39745, 55643, 103337, 198725, 278215, 516685, 723359, 1391075, 2583425, 3616795, 18083975]

約数ペア:

[(1, 18083975), (5, 3616795), (7, 2583425), (13, 1391075), (25, 723359), (35, 516685), (65, 278215), (91, 198725), (175, 103337), (325, 55643), (455, 39745), (2275, 7949)]