18660145

素因数分解:

$5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{1237}}^1$

素因数の和:1680

約数の個数: 16

約数和(自身を含む): 25671168

約数和(自身を除く): 7011023

約数列:

[1, 5, 7, 35, 431, 1237, 2155, 3017, 6185, 8659, 15085, 43295, 533147, 2665735, 3732029, 18660145]

約数ペア:

[(1, 18660145), (5, 3732029), (7, 2665735), (35, 533147), (431, 43295), (1237, 15085), (2155, 8659), (3017, 6185)]