21470643

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1613}}^1$

素因数の和:1668

約数の個数: 32

約数和(自身を含む): 34862400

約数和(自身を除く): 13391757

約数列:

[1, 3, 9, 17, 27, 29, 51, 87, 153, 261, 459, 493, 783, 1479, 1613, 4437, 4839, 13311, 14517, 27421, 43551, 46777, 82263, 140331, 246789, 420993, 740367, 795209, 1262979, 2385627, 7156881, 21470643]

約数ペア:

[(1, 21470643), (3, 7156881), (9, 2385627), (17, 1262979), (27, 795209), (29, 740367), (51, 420993), (87, 246789), (153, 140331), (261, 82263), (459, 46777), (493, 43551), (783, 27421), (1479, 14517), (1613, 13311), (4437, 4839)]