208603997

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{17749}}^1$

素因数の和:17852

約数の個数: 16

約数和(自身を含む): 252192000

約数和(自身を除く): 43588003

約数列:

[1, 7, 23, 73, 161, 511, 1679, 11753, 17749, 124243, 408227, 1295677, 2857589, 9069739, 29800571, 208603997]

約数ペア:

[(1, 208603997), (7, 29800571), (23, 9069739), (73, 2857589), (161, 1295677), (511, 408227), (1679, 124243), (11753, 17749)]