20866145

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1\times {\mathrm{313}}^1$

素因数の和:584

約数の個数: 16

約数和(自身を含む): 25622400

約数和(自身を除く): 4756255

約数列:

[1, 5, 67, 199, 313, 335, 995, 1565, 13333, 20971, 62287, 66665, 104855, 311435, 4173229, 20866145]

約数ペア:

[(1, 20866145), (5, 4173229), (67, 311435), (199, 104855), (313, 66665), (335, 62287), (995, 20971), (1565, 13333)]