20776959

素因数分解:

$3^3\times 7^1\times {\mathrm{211}}^1\times {\mathrm{521}}^1$

素因数の和:748

約数の個数: 32

約数和(自身を含む): 35412480

約数和(自身を除く): 14635521

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 211, 521, 633, 1477, 1563, 1899, 3647, 4431, 4689, 5697, 10941, 13293, 14067, 32823, 39879, 98469, 109931, 329793, 769517, 989379, 2308551, 2968137, 6925653, 20776959]

約数ペア:

[(1, 20776959), (3, 6925653), (7, 2968137), (9, 2308551), (21, 989379), (27, 769517), (63, 329793), (189, 109931), (211, 98469), (521, 39879), (633, 32823), (1477, 14067), (1563, 13293), (1899, 10941), (3647, 5697), (4431, 4689)]