19493121

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 27711936

約数和(自身を除く): 8218815

約数列:

[1, 3, 23, 69, 71, 173, 213, 519, 529, 1587, 1633, 3979, 4899, 11937, 12283, 36849, 37559, 91517, 112677, 274551, 282509, 847527, 6497707, 19493121]

約数ペア:

[(1, 19493121), (3, 6497707), (23, 847527), (69, 282509), (71, 274551), (173, 112677), (213, 91517), (519, 37559), (529, 36849), (1587, 12283), (1633, 11937), (3979, 4899)]