21219872

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{21391}}^1$

素因数の和:21432

約数の個数: 24

約数和(自身を含む): 43126272

約数和(自身を除く): 21906400

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992, 21391, 42782, 85564, 171128, 342256, 663121, 684512, 1326242, 2652484, 5304968, 10609936, 21219872]

約数ペア:

[(1, 21219872), (2, 10609936), (4, 5304968), (8, 2652484), (16, 1326242), (31, 684512), (32, 663121), (62, 342256), (124, 171128), (248, 85564), (496, 42782), (992, 21391)]