19190899

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:715

約数の個数: 24

約数和(自身を含む): 24591168

約数和(自身を除く): 5400269

約数列:

[1, 7, 13, 47, 49, 91, 329, 611, 637, 641, 2303, 4277, 4487, 8333, 29939, 30127, 31409, 58331, 210889, 391651, 408317, 1476223, 2741557, 19190899]

約数ペア:

[(1, 19190899), (7, 2741557), (13, 1476223), (47, 408317), (49, 391651), (91, 210889), (329, 58331), (611, 31409), (637, 30127), (641, 29939), (2303, 8333), (4277, 4487)]