20199721241

素因数分解:

$7^2\times {\mathrm{31}}^2\times {\mathrm{47}}^1\times {\mathrm{9127}}^1$

素因数の和:9250

約数の個数: 36

約数和(自身を含む): 24799388544

約数和(自身を除く): 4599667303

約数列:

[1, 7, 31, 47, 49, 217, 329, 961, 1457, 1519, 2303, 6727, 9127, 10199, 45167, 47089, 63889, 71393, 282937, 316169, 428969, 447223, 1980559, 2213183, 3002783, 8771047, 13298039, 13863913, 21019481, 61397329, 93086273, 412239209, 429781303, 651603911, 2885674463, 20199721241]

約数ペア:

[(1, 20199721241), (7, 2885674463), (31, 651603911), (47, 429781303), (49, 412239209), (217, 93086273), (329, 61397329), (961, 21019481), (1457, 13863913), (1519, 13298039), (2303, 8771047), (6727, 3002783), (9127, 2213183), (10199, 1980559), (45167, 447223), (47089, 428969), (63889, 316169), (71393, 282937)]