19408291

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1999}}^1$

素因数の和:2098

約数の個数: 16

約数和(自身を含む): 23680000

約数和(自身を除く): 4271709

約数列:

[1, 7, 19, 73, 133, 511, 1387, 1999, 9709, 13993, 37981, 145927, 265867, 1021489, 2772613, 19408291]

約数ペア:

[(1, 19408291), (7, 2772613), (19, 1021489), (73, 265867), (133, 145927), (511, 37981), (1387, 13993), (1999, 9709)]