20781746587

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{12899}}^1$

素因数の和:13095

約数の個数: 32

約数和(自身を含む): 24966144000

約数和(自身を除く): 4184397413

約数列:

[1, 7, 47, 59, 83, 329, 413, 581, 2773, 3901, 4897, 12899, 19411, 27307, 34279, 90293, 230159, 606253, 761041, 1070617, 1611113, 4243771, 5327287, 7494319, 35768927, 50318999, 63166403, 250382489, 352232993, 442164821, 2968820941, 20781746587]

約数ペア:

[(1, 20781746587), (7, 2968820941), (47, 442164821), (59, 352232993), (83, 250382489), (329, 63166403), (413, 50318999), (581, 35768927), (2773, 7494319), (3901, 5327287), (4897, 4243771), (12899, 1611113), (19411, 1070617), (27307, 761041), (34279, 606253), (90293, 230159)]