18965648

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4799}}^1$

素因数の和:4839

約数の個数: 40

約数和(自身を含む): 41664000

約数和(自身を除く): 22698352

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 4799, 9598, 19196, 38392, 62387, 76784, 91181, 124774, 182362, 249548, 364724, 499096, 729448, 998192, 1185353, 1458896, 2370706, 4741412, 9482824, 18965648]

約数ペア:

[(1, 18965648), (2, 9482824), (4, 4741412), (8, 2370706), (13, 1458896), (16, 1185353), (19, 998192), (26, 729448), (38, 499096), (52, 364724), (76, 249548), (104, 182362), (152, 124774), (208, 91181), (247, 76784), (304, 62387), (494, 38392), (988, 19196), (1976, 9598), (3952, 4799)]