21228669

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10211}}^1$

素因数の和:10238

約数の個数: 32

約数和(自身を含む): 39214080

約数和(自身を除く): 17985411

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 10211, 30633, 71477, 91899, 112321, 214431, 275697, 336963, 643293, 786247, 1010889, 1929879, 2358741, 3032667, 7076223, 21228669]

約数ペア:

[(1, 21228669), (3, 7076223), (7, 3032667), (9, 2358741), (11, 1929879), (21, 1010889), (27, 786247), (33, 643293), (63, 336963), (77, 275697), (99, 214431), (189, 112321), (231, 91899), (297, 71477), (693, 30633), (2079, 10211)]