81894321

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{59473}}^1$

素因数の和:59502

約数の個数: 20

約数和(自身を含む): 129534372

約数和(自身を除く): 47640051

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 59473, 178419, 535257, 1011041, 1605771, 3033123, 4817313, 9099369, 27298107, 81894321]

約数ペア:

[(1, 81894321), (3, 27298107), (9, 9099369), (17, 4817313), (27, 3033123), (51, 1605771), (81, 1011041), (153, 535257), (459, 178419), (1377, 59473)]