20542518

素因数分解:

$2^1\times 3^3\times {\mathrm{380417}}^1$

素因数の和:380428

約数の個数: 16

約数和(自身を含む): 45650160

約数和(自身を除く): 25107642

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 380417, 760834, 1141251, 2282502, 3423753, 6847506, 10271259, 20542518]

約数ペア:

[(1, 20542518), (2, 10271259), (3, 6847506), (6, 3423753), (9, 2282502), (18, 1141251), (27, 760834), (54, 380417)]