21171388

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24391}}^1$

素因数の和:24433

約数の個数: 24

約数和(自身を含む): 43710464

約数和(自身を除く): 22539076

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 24391, 48782, 97564, 170737, 341474, 682948, 756121, 1512242, 3024484, 5292847, 10585694, 21171388]

約数ペア:

[(1, 21171388), (2, 10585694), (4, 5292847), (7, 3024484), (14, 1512242), (28, 756121), (31, 682948), (62, 341474), (124, 170737), (217, 97564), (434, 48782), (868, 24391)]