20180920347

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1861}}^1\times {\mathrm{4003}}^1$

素因数の和:5920

約数の個数: 48

約数和(自身を含む): 34116130048

約数和(自身を除く): 13935209701

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 1861, 2709, 4003, 5583, 12009, 13027, 16749, 28021, 36027, 39081, 80023, 84063, 117243, 172129, 240069, 252189, 516387, 560161, 720207, 1204903, 1549161, 1680483, 3614709, 5041449, 7449583, 10844127, 22348749, 52147081, 67046247, 156441243, 320332069, 469323729, 960996207, 2242324483, 2882988621, 6726973449, 20180920347]

約数ペア:

[(1, 20180920347), (3, 6726973449), (7, 2882988621), (9, 2242324483), (21, 960996207), (43, 469323729), (63, 320332069), (129, 156441243), (301, 67046247), (387, 52147081), (903, 22348749), (1861, 10844127), (2709, 7449583), (4003, 5041449), (5583, 3614709), (12009, 1680483), (13027, 1549161), (16749, 1204903), (28021, 720207), (36027, 560161), (39081, 516387), (80023, 252189), (84063, 240069), (117243, 172129)]