18336987

素因数分解:

$3^2\times {\mathrm{103}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 27126528

約数和(自身を除く): 8789541

約数列:

[1, 3, 9, 103, 131, 151, 309, 393, 453, 927, 1179, 1359, 13493, 15553, 19781, 40479, 46659, 59343, 121437, 139977, 178029, 2037443, 6112329, 18336987]

約数ペア:

[(1, 18336987), (3, 6112329), (9, 2037443), (103, 178029), (131, 139977), (151, 121437), (309, 59343), (393, 46659), (453, 40479), (927, 19781), (1179, 15553), (1359, 13493)]