21025564

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24223}}^1$

素因数の和:24265

約数の個数: 24

約数和(自身を含む): 43409408

約数和(自身を除く): 22383844

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 24223, 48446, 96892, 169561, 339122, 678244, 750913, 1501826, 3003652, 5256391, 10512782, 21025564]

約数ペア:

[(1, 21025564), (2, 10512782), (4, 5256391), (7, 3003652), (14, 1501826), (28, 750913), (31, 678244), (62, 339122), (124, 169561), (217, 96892), (434, 48446), (868, 24223)]