20299928

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{313}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 42597240

約数和(自身を除く): 22297312

約数列:

[1, 2, 4, 8, 11, 22, 44, 67, 88, 121, 134, 242, 268, 313, 484, 536, 626, 737, 968, 1252, 1474, 2504, 2948, 3443, 5896, 6886, 8107, 13772, 16214, 20971, 27544, 32428, 37873, 41942, 64856, 75746, 83884, 151492, 167768, 230681, 302984, 461362, 922724, 1845448, 2537491, 5074982, 10149964, 20299928]

約数ペア:

[(1, 20299928), (2, 10149964), (4, 5074982), (8, 2537491), (11, 1845448), (22, 922724), (44, 461362), (67, 302984), (88, 230681), (121, 167768), (134, 151492), (242, 83884), (268, 75746), (313, 64856), (484, 41942), (536, 37873), (626, 32428), (737, 27544), (968, 20971), (1252, 16214), (1474, 13772), (2504, 8107), (2948, 6886), (3443, 5896)]