28686609

素因数分解:

$3^3\times 7^2\times {\mathrm{21683}}^1$

素因数の和:21706

約数の個数: 24

約数和(自身を含む): 49439520

約数和(自身を除く): 20752911

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 21683, 65049, 151781, 195147, 455343, 585441, 1062467, 1366029, 3187401, 4098087, 9562203, 28686609]

約数ペア:

[(1, 28686609), (3, 9562203), (7, 4098087), (9, 3187401), (21, 1366029), (27, 1062467), (49, 585441), (63, 455343), (147, 195147), (189, 151781), (441, 65049), (1323, 21683)]