81786429

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{9803}}^1$

素因数の和:9918

約数の個数: 20

約数和(自身を含む): 123373536

約数和(自身を除く): 41587107

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 2781, 8343, 9803, 29409, 88227, 264681, 794043, 1009709, 3029127, 9087381, 27262143, 81786429]

約数ペア:

[(1, 81786429), (3, 27262143), (9, 9087381), (27, 3029127), (81, 1009709), (103, 794043), (309, 264681), (927, 88227), (2781, 29409), (8343, 9803)]