18319928

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{509}}^1$

素因数の和:935

約数の個数: 32

約数和(自身を含む): 37638000

約数和(自身を除く): 19318072

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 409, 509, 818, 1018, 1636, 2036, 3272, 4072, 4499, 5599, 8998, 11198, 17996, 22396, 35992, 44792, 208181, 416362, 832724, 1665448, 2289991, 4579982, 9159964, 18319928]

約数ペア:

[(1, 18319928), (2, 9159964), (4, 4579982), (8, 2289991), (11, 1665448), (22, 832724), (44, 416362), (88, 208181), (409, 44792), (509, 35992), (818, 22396), (1018, 17996), (1636, 11198), (2036, 8998), (3272, 5599), (4072, 4499)]