21203512

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{2903}}^1$

素因数の和:3003

約数の個数: 32

約数和(自身を含む): 43908480

約数和(自身を除く): 22704968

約数列:

[1, 2, 4, 8, 11, 22, 44, 83, 88, 166, 332, 664, 913, 1826, 2903, 3652, 5806, 7304, 11612, 23224, 31933, 63866, 127732, 240949, 255464, 481898, 963796, 1927592, 2650439, 5300878, 10601756, 21203512]

約数ペア:

[(1, 21203512), (2, 10601756), (4, 5300878), (8, 2650439), (11, 1927592), (22, 963796), (44, 481898), (83, 255464), (88, 240949), (166, 127732), (332, 63866), (664, 31933), (913, 23224), (1826, 11612), (2903, 7304), (3652, 5806)]