19963713

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{86423}}^1$

素因数の和:86444

約数の個数: 16

約数和(自身を含む): 33186816

約数和(自身を除く): 13223103

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 86423, 259269, 604961, 950653, 1814883, 2851959, 6654571, 19963713]

約数ペア:

[(1, 19963713), (3, 6654571), (7, 2851959), (11, 1814883), (21, 950653), (33, 604961), (77, 259269), (231, 86423)]