20860888

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{353}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 40143600

約数和(自身を除く): 19282712

約数列:

[1, 2, 4, 8, 83, 89, 166, 178, 332, 353, 356, 664, 706, 712, 1412, 2824, 7387, 14774, 29299, 29548, 31417, 58598, 59096, 62834, 117196, 125668, 234392, 251336, 2607611, 5215222, 10430444, 20860888]

約数ペア:

[(1, 20860888), (2, 10430444), (4, 5215222), (8, 2607611), (83, 251336), (89, 234392), (166, 125668), (178, 117196), (332, 62834), (353, 59096), (356, 58598), (664, 31417), (706, 29548), (712, 29299), (1412, 14774), (2824, 7387)]