19872278

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1\times {\mathrm{743}}^1$

素因数の和:1099

約数の個数: 16

約数和(自身を含む): 30640896

約数和(自身を除く): 10768618

約数列:

[1, 2, 43, 86, 311, 622, 743, 1486, 13373, 26746, 31949, 63898, 231073, 462146, 9936139, 19872278]

約数ペア:

[(1, 19872278), (2, 9936139), (43, 462146), (86, 231073), (311, 63898), (622, 31949), (743, 26746), (1486, 13373)]