19814476

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{40939}}^1$

素因数の和:40965

約数の個数: 18

約数和(自身を含む): 38115140

約数和(自身を除く): 18300664

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 40939, 81878, 163756, 450329, 900658, 1801316, 4953619, 9907238, 19814476]

約数ペア:

[(1, 19814476), (2, 9907238), (4, 4953619), (11, 1801316), (22, 900658), (44, 450329), (121, 163756), (242, 81878), (484, 40939)]