18588988

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:418

約数の個数: 36

約数和(自身を含む): 36122800

約数和(自身を除く): 17533812

約数列:

[1, 2, 4, 11, 22, 44, 121, 193, 199, 242, 386, 398, 484, 772, 796, 2123, 2189, 4246, 4378, 8492, 8756, 23353, 24079, 38407, 46706, 48158, 76814, 93412, 96316, 153628, 422477, 844954, 1689908, 4647247, 9294494, 18588988]

約数ペア:

[(1, 18588988), (2, 9294494), (4, 4647247), (11, 1689908), (22, 844954), (44, 422477), (121, 153628), (193, 96316), (199, 93412), (242, 76814), (386, 48158), (398, 46706), (484, 38407), (772, 24079), (796, 23353), (2123, 8756), (2189, 8492), (4246, 4378)]