28039557

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{379}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 46305280

約数和(自身を除く): 18265723

約数列:

[1, 3, 7, 13, 21, 39, 91, 271, 273, 379, 813, 1137, 1897, 2653, 3523, 4927, 5691, 7959, 10569, 14781, 24661, 34489, 73983, 102709, 103467, 308127, 718963, 1335217, 2156889, 4005651, 9346519, 28039557]

約数ペア:

[(1, 28039557), (3, 9346519), (7, 4005651), (13, 2156889), (21, 1335217), (39, 718963), (91, 308127), (271, 103467), (273, 102709), (379, 73983), (813, 34489), (1137, 24661), (1897, 14781), (2653, 10569), (3523, 7959), (4927, 5691)]