1231821

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{1061}}^1$

素因数の和:1113

約数の個数: 16

約数和(自身を含む): 1869120

約数和(自身を除く): 637299

約数列:

[1, 3, 9, 27, 43, 129, 387, 1061, 1161, 3183, 9549, 28647, 45623, 136869, 410607, 1231821]

約数ペア:

[(1, 1231821), (3, 410607), (9, 136869), (27, 45623), (43, 28647), (129, 9549), (387, 3183), (1061, 1161)]