20857535993

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{39341}}^1$

素因数の和:39497

約数の個数: 32

約数和(自身を含む): 25833530880

約数和(自身を除く): 4975994887

約数列:

[1, 7, 23, 37, 89, 161, 259, 623, 851, 2047, 3293, 5957, 14329, 23051, 39341, 75739, 275387, 530173, 904843, 1455617, 3501349, 6333901, 10189319, 24509443, 33479191, 80531027, 129549913, 234354337, 563717189, 906849391, 2979647999, 20857535993]

約数ペア:

[(1, 20857535993), (7, 2979647999), (23, 906849391), (37, 563717189), (89, 234354337), (161, 129549913), (259, 80531027), (623, 33479191), (851, 24509443), (2047, 10189319), (3293, 6333901), (5957, 3501349), (14329, 1455617), (23051, 904843), (39341, 530173), (75739, 275387)]