20381116

素因数分解:

$2^2\times 7^1\times {\mathrm{307}}^1\times {\mathrm{2371}}^1$

素因数の和:2689

約数の個数: 24

約数和(自身を含む): 40912256

約数和(自身を除く): 20531140

約数列:

[1, 2, 4, 7, 14, 28, 307, 614, 1228, 2149, 2371, 4298, 4742, 8596, 9484, 16597, 33194, 66388, 727897, 1455794, 2911588, 5095279, 10190558, 20381116]

約数ペア:

[(1, 20381116), (2, 10190558), (4, 5095279), (7, 2911588), (14, 1455794), (28, 727897), (307, 66388), (614, 33194), (1228, 16597), (2149, 9484), (2371, 8596), (4298, 4742)]