217397121

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{15461}}^1$

素因数の和:15616

約数の個数: 16

約数和(自身を含む): 299344320

約数和(自身を除く): 81947199

約数列:

[1, 3, 43, 109, 129, 327, 4687, 14061, 15461, 46383, 664823, 1685249, 1994469, 5055747, 72465707, 217397121]

約数ペア:

[(1, 217397121), (3, 72465707), (43, 5055747), (109, 1994469), (129, 1685249), (327, 664823), (4687, 46383), (14061, 15461)]