21307446

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{27529}}^1$

素因数の和:27580

約数の個数: 24

約数和(自身を含む): 47241480

約数和(自身を除く): 25934034

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 27529, 55058, 82587, 165174, 247761, 495522, 1183747, 2367494, 3551241, 7102482, 10653723, 21307446]

約数ペア:

[(1, 21307446), (2, 10653723), (3, 7102482), (6, 3551241), (9, 2367494), (18, 1183747), (43, 495522), (86, 247761), (129, 165174), (258, 82587), (387, 55058), (774, 27529)]