18954873

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6997}}^1$

素因数の和:7053

約数の個数: 24

約数和(自身を含む): 32022848

約数和(自身を除く): 13067975

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 6997, 20991, 48979, 62973, 146937, 300871, 440811, 902613, 2106097, 2707839, 6318291, 18954873]

約数ペア:

[(1, 18954873), (3, 6318291), (7, 2707839), (9, 2106097), (21, 902613), (43, 440811), (63, 300871), (129, 146937), (301, 62973), (387, 48979), (903, 20991), (2709, 6997)]