21335783

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{971}}^1$

素因数の和:1094

約数の個数: 16

約数和(自身を含む): 25318656

約数和(自身を除く): 3982873

約数列:

[1, 7, 43, 73, 301, 511, 971, 3139, 6797, 21973, 41753, 70883, 292271, 496181, 3047969, 21335783]

約数ペア:

[(1, 21335783), (7, 3047969), (43, 496181), (73, 292271), (301, 70883), (511, 41753), (971, 21973), (3139, 6797)]