2156979

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{401}}^1$

素因数の和:578

約数の個数: 16

約数和(自身を含む): 3164544

約数和(自身を除く): 1007565

約数列:

[1, 3, 11, 33, 163, 401, 489, 1203, 1793, 4411, 5379, 13233, 65363, 196089, 718993, 2156979]

約数ペア:

[(1, 2156979), (3, 718993), (11, 196089), (33, 65363), (163, 13233), (401, 5379), (489, 4411), (1203, 1793)]