20189572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{2473}}^1$

素因数の和:2647

約数の個数: 24

約数和(自身を含む): 38307416

約数和(自身を除く): 18117844

約数列:

[1, 2, 4, 13, 26, 52, 157, 314, 628, 2041, 2473, 4082, 4946, 8164, 9892, 32149, 64298, 128596, 388261, 776522, 1553044, 5047393, 10094786, 20189572]

約数ペア:

[(1, 20189572), (2, 10094786), (4, 5047393), (13, 1553044), (26, 776522), (52, 388261), (157, 128596), (314, 64298), (628, 32149), (2041, 9892), (2473, 8164), (4082, 4946)]