81996831

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{76561}}^1$

素因数の和:76591

約数の個数: 24

約数和(自身を含む): 143324064

約数和(自身を除く): 61327233

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 76561, 229683, 535927, 689049, 1301537, 1607781, 3904611, 4823343, 9110759, 11713833, 27332277, 81996831]

約数ペア:

[(1, 81996831), (3, 27332277), (7, 11713833), (9, 9110759), (17, 4823343), (21, 3904611), (51, 1607781), (63, 1301537), (119, 689049), (153, 535927), (357, 229683), (1071, 76561)]