19889748

素因数分解:

$2^2\times 3^2\times {\mathrm{552493}}^1$

素因数の和:552503

約数の個数: 18

約数和(自身を含む): 50276954

約数和(自身を除く): 30387206

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 552493, 1104986, 1657479, 2209972, 3314958, 4972437, 6629916, 9944874, 19889748]

約数ペア:

[(1, 19889748), (2, 9944874), (3, 6629916), (4, 4972437), (6, 3314958), (9, 2209972), (12, 1657479), (18, 1104986), (36, 552493)]