19728464

素因数分解:

$2^4\times 7^1\times {\mathrm{353}}^1\times {\mathrm{499}}^1$

素因数の和:867

約数の個数: 40

約数和(自身を含む): 43896000

約数和(自身を除く): 24167536

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 353, 499, 706, 998, 1412, 1996, 2471, 2824, 3493, 3992, 4942, 5648, 6986, 7984, 9884, 13972, 19768, 27944, 39536, 55888, 176147, 352294, 704588, 1233029, 1409176, 2466058, 2818352, 4932116, 9864232, 19728464]

約数ペア:

[(1, 19728464), (2, 9864232), (4, 4932116), (7, 2818352), (8, 2466058), (14, 1409176), (16, 1233029), (28, 704588), (56, 352294), (112, 176147), (353, 55888), (499, 39536), (706, 27944), (998, 19768), (1412, 13972), (1996, 9884), (2471, 7984), (2824, 6986), (3493, 5648), (3992, 4942)]