20835784

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{313}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 40185720

約数和(自身を除く): 19349936

約数列:

[1, 2, 4, 8, 53, 106, 157, 212, 313, 314, 424, 626, 628, 1252, 1256, 2504, 8321, 16589, 16642, 33178, 33284, 49141, 66356, 66568, 98282, 132712, 196564, 393128, 2604473, 5208946, 10417892, 20835784]

約数ペア:

[(1, 20835784), (2, 10417892), (4, 5208946), (8, 2604473), (53, 393128), (106, 196564), (157, 132712), (212, 98282), (313, 66568), (314, 66356), (424, 49141), (626, 33284), (628, 33178), (1252, 16642), (1256, 16589), (2504, 8321)]