20412917

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{929}}^1$

素因数の和:1052

約数の個数: 16

約数和(自身を含む): 24224640

約数和(自身を除く): 3811723

約数列:

[1, 7, 43, 73, 301, 511, 929, 3139, 6503, 21973, 39947, 67817, 279629, 474719, 2916131, 20412917]

約数ペア:

[(1, 20412917), (7, 2916131), (43, 474719), (73, 279629), (301, 67817), (511, 39947), (929, 21973), (3139, 6503)]