19969293

素因数分解:

$3^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1\times {\mathrm{421}}^1$

素因数の和:684

約数の個数: 16

約数和(自身を含む): 27129536

約数和(自身を除く): 7160243

約数列:

[1, 3, 97, 163, 291, 421, 489, 1263, 15811, 40837, 47433, 68623, 122511, 205869, 6656431, 19969293]

約数ペア:

[(1, 19969293), (3, 6656431), (97, 205869), (163, 122511), (291, 68623), (421, 47433), (489, 40837), (1263, 15811)]