18777741

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{6947}}^1$

素因数の和:7020

約数の個数: 16

約数和(自身を含む): 27013824

約数和(自身を除く): 8236083

約数列:

[1, 3, 17, 51, 53, 159, 901, 2703, 6947, 20841, 118099, 354297, 368191, 1104573, 6259247, 18777741]

約数ペア:

[(1, 18777741), (3, 6259247), (17, 1104573), (51, 368191), (53, 354297), (159, 118099), (901, 20841), (2703, 6947)]