21087208

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3299}}^1$

素因数の和:3369

約数の個数: 32

約数和(自身を含む): 42768000

約数和(自身を除く): 21680792

約数列:

[1, 2, 4, 8, 17, 34, 47, 68, 94, 136, 188, 376, 799, 1598, 3196, 3299, 6392, 6598, 13196, 26392, 56083, 112166, 155053, 224332, 310106, 448664, 620212, 1240424, 2635901, 5271802, 10543604, 21087208]

約数ペア:

[(1, 21087208), (2, 10543604), (4, 5271802), (8, 2635901), (17, 1240424), (34, 620212), (47, 448664), (68, 310106), (94, 224332), (136, 155053), (188, 112166), (376, 56083), (799, 26392), (1598, 13196), (3196, 6598), (3299, 6392)]