20403309

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{1223}}^1$

素因数の和:1376

約数の個数: 16

約数和(自身を含む): 27965952

約数和(自身を除く): 7562643

約数列:

[1, 3, 67, 83, 201, 249, 1223, 3669, 5561, 16683, 81941, 101509, 245823, 304527, 6801103, 20403309]

約数ペア:

[(1, 20403309), (3, 6801103), (67, 304527), (83, 245823), (201, 101509), (249, 81941), (1223, 16683), (3669, 5561)]