19731999

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{40853}}^1$

素因数の和:40886

約数の個数: 16

約数和(自身を含む): 31375872

約数和(自身を除く): 11643873

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 40853, 122559, 285971, 857913, 939619, 2818857, 6577333, 19731999]

約数ペア:

[(1, 19731999), (3, 6577333), (7, 2818857), (21, 939619), (23, 857913), (69, 285971), (161, 122559), (483, 40853)]