21131992

素因数分解:

$2^3\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1069}}^1$

素因数の和:1435

約数の個数: 32

約数和(自身を含む): 45453600

約数和(自身を除く): 24321608

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 353, 706, 1069, 1412, 2138, 2471, 2824, 4276, 4942, 7483, 8552, 9884, 14966, 19768, 29932, 59864, 377357, 754714, 1509428, 2641499, 3018856, 5282998, 10565996, 21131992]

約数ペア:

[(1, 21131992), (2, 10565996), (4, 5282998), (7, 3018856), (8, 2641499), (14, 1509428), (28, 754714), (56, 377357), (353, 59864), (706, 29932), (1069, 19768), (1412, 14966), (2138, 9884), (2471, 8552), (2824, 7483), (4276, 4942)]