81746469

素因数分解:

$3^3\times 7^1\times {\mathrm{523}}^1\times {\mathrm{827}}^1$

素因数の和:1366

約数の個数: 32

約数和(自身を含む): 138839040

約数和(自身を除く): 57092571

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 523, 827, 1569, 2481, 3661, 4707, 5789, 7443, 10983, 14121, 17367, 22329, 32949, 52101, 98847, 156303, 432521, 1297563, 3027647, 3892689, 9082941, 11678067, 27248823, 81746469]

約数ペア:

[(1, 81746469), (3, 27248823), (7, 11678067), (9, 9082941), (21, 3892689), (27, 3027647), (63, 1297563), (189, 432521), (523, 156303), (827, 98847), (1569, 52101), (2481, 32949), (3661, 22329), (4707, 17367), (5789, 14121), (7443, 10983)]