51426781

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 64350720

約数和(自身を除く): 12923939

約数列:

[1, 7, 23, 37, 89, 97, 161, 259, 623, 679, 851, 2047, 2231, 3293, 3589, 5957, 8633, 14329, 15617, 23051, 25123, 60431, 75739, 82547, 198559, 319421, 530173, 577829, 1389913, 2235947, 7346683, 51426781]

約数ペア:

[(1, 51426781), (7, 7346683), (23, 2235947), (37, 1389913), (89, 577829), (97, 530173), (161, 319421), (259, 198559), (623, 82547), (679, 75739), (851, 60431), (2047, 25123), (2231, 23051), (3293, 15617), (3589, 14329), (5957, 8633)]