21499648

素因数分解:

$2^8\times {\mathrm{83983}}^1$

素因数の和:83999

約数の個数: 18

約数和(自身を含む): 42915824

約数和(自身を除く): 21416176

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 83983, 167966, 335932, 671864, 1343728, 2687456, 5374912, 10749824, 21499648]

約数ペア:

[(1, 21499648), (2, 10749824), (4, 5374912), (8, 2687456), (16, 1343728), (32, 671864), (64, 335932), (128, 167966), (256, 83983)]