21434908

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{661}}^1$

素因数の和:754

約数の個数: 36

約数和(自身を含む): 41909896

約数和(自身を除く): 20474988

約数列:

[1, 2, 4, 11, 22, 44, 67, 121, 134, 242, 268, 484, 661, 737, 1322, 1474, 2644, 2948, 7271, 8107, 14542, 16214, 29084, 32428, 44287, 79981, 88574, 159962, 177148, 319924, 487157, 974314, 1948628, 5358727, 10717454, 21434908]

約数ペア:

[(1, 21434908), (2, 10717454), (4, 5358727), (11, 1948628), (22, 974314), (44, 487157), (67, 319924), (121, 177148), (134, 159962), (242, 88574), (268, 79981), (484, 44287), (661, 32428), (737, 29084), (1322, 16214), (1474, 14542), (2644, 8107), (2948, 7271)]