20965168

素因数分解:

$2^4\times 7^1\times {\mathrm{187189}}^1$

素因数の和:187204

約数の個数: 20

約数和(自身を含む): 46423120

約数和(自身を除く): 25457952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 187189, 374378, 748756, 1310323, 1497512, 2620646, 2995024, 5241292, 10482584, 20965168]

約数ペア:

[(1, 20965168), (2, 10482584), (4, 5241292), (7, 2995024), (8, 2620646), (14, 1497512), (16, 1310323), (28, 748756), (56, 374378), (112, 187189)]