21167741860

素因数分解:

$2^2\times 5^1\times {\mathrm{51803}}^1\times {\mathrm{20431}}^1$

素因数の和:72243

約数の個数: 24

約数和(自身を含む): 44455291776

約数和(自身を除く): 23287549916

約数列:

[1, 2, 4, 5, 10, 20, 20431, 40862, 51803, 81724, 102155, 103606, 204310, 207212, 259015, 408620, 518030, 1036060, 1058387093, 2116774186, 4233548372, 5291935465, 10583870930, 21167741860]

約数ペア:

[(1, 21167741860), (2, 10583870930), (4, 5291935465), (5, 4233548372), (10, 2116774186), (20, 1058387093), (20431, 1036060), (40862, 518030), (51803, 408620), (81724, 259015), (102155, 207212), (103606, 204310)]