20787081

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{863}}^1$

素因数の和:941

約数の個数: 32

約数和(自身を含む): 33619968

約数和(自身を除く): 12832887

約数列:

[1, 3, 7, 21, 31, 37, 93, 111, 217, 259, 651, 777, 863, 1147, 2589, 3441, 6041, 8029, 18123, 24087, 26753, 31931, 80259, 95793, 187271, 223517, 561813, 670551, 989861, 2969583, 6929027, 20787081]

約数ペア:

[(1, 20787081), (3, 6929027), (7, 2969583), (21, 989861), (31, 670551), (37, 561813), (93, 223517), (111, 187271), (217, 95793), (259, 80259), (651, 31931), (777, 26753), (863, 24087), (1147, 18123), (2589, 8029), (3441, 6041)]