20939848

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{63841}}^1$

素因数の和:63888

約数の個数: 16

約数和(自身を含む): 40220460

約数和(自身を除く): 19280612

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 63841, 127682, 255364, 510728, 2617481, 5234962, 10469924, 20939848]

約数ペア:

[(1, 20939848), (2, 10469924), (4, 5234962), (8, 2617481), (41, 510728), (82, 255364), (164, 127682), (328, 63841)]