18691881

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{9043}}^1$

素因数の和:9112

約数の個数: 16

約数和(自身を含む): 27349056

約数和(自身を除く): 8657175

約数列:

[1, 3, 13, 39, 53, 159, 689, 2067, 9043, 27129, 117559, 352677, 479279, 1437837, 6230627, 18691881]

約数ペア:

[(1, 18691881), (3, 6230627), (13, 1437837), (39, 479279), (53, 352677), (159, 117559), (689, 27129), (2067, 9043)]