25308021

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{907}}^1$

素因数の和:1112

約数の個数: 16

約数和(自身を含む): 34518528

約数和(自身を除く): 9210507

約数列:

[1, 3, 71, 131, 213, 393, 907, 2721, 9301, 27903, 64397, 118817, 193191, 356451, 8436007, 25308021]

約数ペア:

[(1, 25308021), (3, 8436007), (71, 356451), (131, 193191), (213, 118817), (393, 64397), (907, 27903), (2721, 9301)]