21028293

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{16339}}^1$

素因数の和:16369

約数の個数: 24

約数和(自身を含む): 35686560

約数和(自身を除く): 14658267

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 16339, 49017, 147051, 179729, 212407, 539187, 637221, 1617561, 1911663, 2336477, 7009431, 21028293]

約数ペア:

[(1, 21028293), (3, 7009431), (9, 2336477), (11, 1911663), (13, 1617561), (33, 637221), (39, 539187), (99, 212407), (117, 179729), (143, 147051), (429, 49017), (1287, 16339)]