664840131

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{66173}}^1$

素因数の和:66390

約数の個数: 16

約数和(自身を含む): 943376544

約数和(自身を除く): 278536413

約数列:

[1, 3, 17, 51, 197, 591, 3349, 10047, 66173, 198519, 1124941, 3374823, 13036081, 39108243, 221613377, 664840131]

約数ペア:

[(1, 664840131), (3, 221613377), (17, 39108243), (51, 13036081), (197, 3374823), (591, 1124941), (3349, 198519), (10047, 66173)]