18705295

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 26707968

約数和(自身を除く): 8002673

約数列:

[1, 5, 7, 35, 47, 83, 137, 235, 329, 415, 581, 685, 959, 1645, 2905, 3901, 4795, 6439, 11371, 19505, 27307, 32195, 45073, 56855, 79597, 136535, 225365, 397985, 534437, 2672185, 3741059, 18705295]

約数ペア:

[(1, 18705295), (5, 3741059), (7, 2672185), (35, 534437), (47, 397985), (83, 225365), (137, 136535), (235, 79597), (329, 56855), (415, 45073), (581, 32195), (685, 27307), (959, 19505), (1645, 11371), (2905, 6439), (3901, 4795)]