18913959

素因数分解:

$3^3\times {\mathrm{659}}^1\times {\mathrm{1063}}^1$

素因数の和:1731

約数の個数: 16

約数和(自身を含む): 28089600

約数和(自身を除く): 9175641

約数列:

[1, 3, 9, 27, 659, 1063, 1977, 3189, 5931, 9567, 17793, 28701, 700517, 2101551, 6304653, 18913959]

約数ペア:

[(1, 18913959), (3, 6304653), (9, 2101551), (27, 700517), (659, 28701), (1063, 17793), (1977, 9567), (3189, 5931)]