19983694311

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^2\times {\mathrm{171553}}^1$

素因数の和:171652

約数の個数: 36

約数和(自身を含む): 33774179088

約数和(自身を除く): 13790484777

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 1849, 2709, 5547, 12943, 16641, 38829, 116487, 171553, 514659, 1200871, 1543977, 3602613, 7376779, 10807839, 22130337, 51637453, 66391011, 154912359, 317201497, 464737077, 951604491, 2220410479, 2854813473, 6661231437, 19983694311]

約数ペア:

[(1, 19983694311), (3, 6661231437), (7, 2854813473), (9, 2220410479), (21, 951604491), (43, 464737077), (63, 317201497), (129, 154912359), (301, 66391011), (387, 51637453), (903, 22130337), (1849, 10807839), (2709, 7376779), (5547, 3602613), (12943, 1543977), (16641, 1200871), (38829, 514659), (116487, 171553)]