720634563

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{808793}}^1$

素因数の和:808816

約数の個数: 20

約数和(自身を含む): 1174368888

約数和(自身を除く): 453734325

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 808793, 2426379, 7279137, 8896723, 21837411, 26690169, 65512233, 80070507, 240211521, 720634563]

約数ペア:

[(1, 720634563), (3, 240211521), (9, 80070507), (11, 65512233), (27, 26690169), (33, 21837411), (81, 8896723), (99, 7279137), (297, 2426379), (891, 808793)]