1813309821

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{1178239}}^1$

素因数の和:1178270

約数の個数: 20

約数和(自身を含む): 2851340800

約数和(自身を除く): 1038030979

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 1178239, 3534717, 10604151, 22386541, 31812453, 67159623, 95437359, 201478869, 604436607, 1813309821]

約数ペア:

[(1, 1813309821), (3, 604436607), (9, 201478869), (19, 95437359), (27, 67159623), (57, 31812453), (81, 22386541), (171, 10604151), (513, 3534717), (1539, 1178239)]