18949868

素因数分解:

$2^2\times 7^2\times {\mathrm{109}}^1\times {\mathrm{887}}^1$

素因数の和:1014

約数の個数: 36

約数和(自身を含む): 38974320

約数和(自身を除く): 20024452

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 109, 196, 218, 436, 763, 887, 1526, 1774, 3052, 3548, 5341, 6209, 10682, 12418, 21364, 24836, 43463, 86926, 96683, 173852, 193366, 386732, 676781, 1353562, 2707124, 4737467, 9474934, 18949868]

約数ペア:

[(1, 18949868), (2, 9474934), (4, 4737467), (7, 2707124), (14, 1353562), (28, 676781), (49, 386732), (98, 193366), (109, 173852), (196, 96683), (218, 86926), (436, 43463), (763, 24836), (887, 21364), (1526, 12418), (1774, 10682), (3052, 6209), (3548, 5341)]