18530871

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{2153}}^1$

素因数の和:2326

約数の個数: 16

約数和(自身を含む): 26192640

約数和(自身を除く): 7661769

約数列:

[1, 3, 19, 57, 151, 453, 2153, 2869, 6459, 8607, 40907, 122721, 325103, 975309, 6176957, 18530871]

約数ペア:

[(1, 18530871), (3, 6176957), (19, 975309), (57, 325103), (151, 122721), (453, 40907), (2153, 8607), (2869, 6459)]