21630812

素因数分解:

$2^2\times 7^1\times {\mathrm{317}}^1\times {\mathrm{2437}}^1$

素因数の和:2765

約数の個数: 24

約数和(自身を含む): 43415904

約数和(自身を除く): 21785092

約数列:

[1, 2, 4, 7, 14, 28, 317, 634, 1268, 2219, 2437, 4438, 4874, 8876, 9748, 17059, 34118, 68236, 772529, 1545058, 3090116, 5407703, 10815406, 21630812]

約数ペア:

[(1, 21630812), (2, 10815406), (4, 5407703), (7, 3090116), (14, 1545058), (28, 772529), (317, 68236), (634, 34118), (1268, 17059), (2219, 9748), (2437, 8876), (4438, 4874)]