20859741

素因数分解:

$3^3\times 7^2\times {\mathrm{15767}}^1$

素因数の和:15790

約数の個数: 24

約数和(自身を含む): 35951040

約数和(自身を除く): 15091299

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15767, 47301, 110369, 141903, 331107, 425709, 772583, 993321, 2317749, 2979963, 6953247, 20859741]

約数ペア:

[(1, 20859741), (3, 6953247), (7, 2979963), (9, 2317749), (21, 993321), (27, 772583), (49, 425709), (63, 331107), (147, 141903), (189, 110369), (441, 47301), (1323, 15767)]