18966789

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{1553}}^1$

素因数の和:1641

約数の個数: 24

約数和(自身を含む): 29090880

約数和(自身を除く): 10124091

約数列:

[1, 3, 9, 23, 59, 69, 177, 207, 531, 1357, 1553, 4071, 4659, 12213, 13977, 35719, 91627, 107157, 274881, 321471, 824643, 2107421, 6322263, 18966789]

約数ペア:

[(1, 18966789), (3, 6322263), (9, 2107421), (23, 824643), (59, 321471), (69, 274881), (177, 107157), (207, 91627), (531, 35719), (1357, 13977), (1553, 12213), (4071, 4659)]