19890546

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{255007}}^1$

素因数の和:255025

約数の個数: 16

約数和(自身を含む): 42841344

約数和(自身を除く): 22950798

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 255007, 510014, 765021, 1530042, 3315091, 6630182, 9945273, 19890546]

約数ペア:

[(1, 19890546), (2, 9945273), (3, 6630182), (6, 3315091), (13, 1530042), (26, 765021), (39, 510014), (78, 255007)]