20517944

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{277}}^1$

素因数の和:527

約数の個数: 32

約数和(自身を含む): 39631680

約数和(自身を除く): 19113736

約数列:

[1, 2, 4, 8, 47, 94, 188, 197, 277, 376, 394, 554, 788, 1108, 1576, 2216, 9259, 13019, 18518, 26038, 37036, 52076, 54569, 74072, 104152, 109138, 218276, 436552, 2564743, 5129486, 10258972, 20517944]

約数ペア:

[(1, 20517944), (2, 10258972), (4, 5129486), (8, 2564743), (47, 436552), (94, 218276), (188, 109138), (197, 104152), (277, 74072), (376, 54569), (394, 52076), (554, 37036), (788, 26038), (1108, 18518), (1576, 13019), (2216, 9259)]