21439024

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{2729}}^1$

素因数の和:3228

約数の個数: 20

約数和(自身を含む): 41637960

約数和(自身を除く): 20198936

約数列:

[1, 2, 4, 8, 16, 491, 982, 1964, 2729, 3928, 5458, 7856, 10916, 21832, 43664, 1339939, 2679878, 5359756, 10719512, 21439024]

約数ペア:

[(1, 21439024), (2, 10719512), (4, 5359756), (8, 2679878), (16, 1339939), (491, 43664), (982, 21832), (1964, 10916), (2729, 7856), (3928, 5458)]