20899416

素因数分解:

$2^3\times 3^1\times {\mathrm{870809}}^1$

素因数の和:870818

約数の個数: 16

約数和(自身を含む): 52248600

約数和(自身を除く): 31349184

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 870809, 1741618, 2612427, 3483236, 5224854, 6966472, 10449708, 20899416]

約数ペア:

[(1, 20899416), (2, 10449708), (3, 6966472), (4, 5224854), (6, 3483236), (8, 2612427), (12, 1741618), (24, 870809)]