221417903

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{7789}}^1$

素因数の和:7958

約数の個数: 16

約数和(自身を含む): 263239680

約数和(自身を除く): 41821777

約数列:

[1, 7, 31, 131, 217, 917, 4061, 7789, 28427, 54523, 241459, 1020359, 1690213, 7142513, 31631129, 221417903]

約数ペア:

[(1, 221417903), (7, 31631129), (31, 7142513), (131, 1690213), (217, 1020359), (917, 241459), (4061, 54523), (7789, 28427)]