21226491

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{16493}}^1$

素因数の和:16523

約数の個数: 24

約数和(自身を含む): 36022896

約数和(自身を除く): 14796405

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 16493, 49479, 148437, 181423, 214409, 544269, 643227, 1632807, 1929681, 2358499, 7075497, 21226491]

約数ペア:

[(1, 21226491), (3, 7075497), (9, 2358499), (11, 1929681), (13, 1632807), (33, 643227), (39, 544269), (99, 214409), (117, 181423), (143, 148437), (429, 49479), (1287, 16493)]