19879812

素因数分解:

$2^2\times 3^2\times {\mathrm{552217}}^1$

素因数の和:552227

約数の個数: 18

約数和(自身を含む): 50251838

約数和(自身を除く): 30372026

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 552217, 1104434, 1656651, 2208868, 3313302, 4969953, 6626604, 9939906, 19879812]

約数ペア:

[(1, 19879812), (2, 9939906), (3, 6626604), (4, 4969953), (6, 3313302), (9, 2208868), (12, 1656651), (18, 1104434), (36, 552217)]