21707518

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{337}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 38548224

約数和(自身を除く): 16840706

約数列:

[1, 2, 7, 14, 43, 86, 107, 214, 301, 337, 602, 674, 749, 1498, 2359, 4601, 4718, 9202, 14491, 28982, 32207, 36059, 64414, 72118, 101437, 202874, 252413, 504826, 1550537, 3101074, 10853759, 21707518]

約数ペア:

[(1, 21707518), (2, 10853759), (7, 3101074), (14, 1550537), (43, 504826), (86, 252413), (107, 202874), (214, 101437), (301, 72118), (337, 64414), (602, 36059), (674, 32207), (749, 28982), (1498, 14491), (2359, 9202), (4601, 4718)]