18646047

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6883}}^1$

素因数の和:6939

約数の個数: 24

約数和(自身を含む): 31501184

約数和(自身を除く): 12855137

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 6883, 20649, 48181, 61947, 144543, 295969, 433629, 887907, 2071783, 2663721, 6215349, 18646047]

約数ペア:

[(1, 18646047), (3, 6215349), (7, 2663721), (9, 2071783), (21, 887907), (43, 433629), (63, 295969), (129, 144543), (301, 61947), (387, 48181), (903, 20649), (2709, 6883)]