18138635

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{443}}^1$

素因数の和:898

約数の個数: 16

約数和(自身を含む): 23016960

約数和(自身を除く): 4878325

約数列:

[1, 5, 19, 95, 431, 443, 2155, 2215, 8189, 8417, 40945, 42085, 190933, 954665, 3627727, 18138635]

約数ペア:

[(1, 18138635), (5, 3627727), (19, 954665), (95, 190933), (431, 42085), (443, 40945), (2155, 8417), (2215, 8189)]