28209111

素因数分解:

$3^1\times 7^1\times {\mathrm{607}}^1\times {\mathrm{2213}}^1$

素因数の和:2830

約数の個数: 16

約数和(自身を含む): 43075584

約数和(自身を除く): 14866473

約数列:

[1, 3, 7, 21, 607, 1821, 2213, 4249, 6639, 12747, 15491, 46473, 1343291, 4029873, 9403037, 28209111]

約数ペア:

[(1, 28209111), (3, 9403037), (7, 4029873), (21, 1343291), (607, 46473), (1821, 15491), (2213, 12747), (4249, 6639)]