20804932491

素因数分解:

$3^1\times 7^2\times {\mathrm{141530153}}^1$

素因数の和:141530170

約数の個数: 12

約数和(自身を含む): 32268875112

約数和(自身を除く): 11463942621

約数列:

[1, 3, 7, 21, 49, 147, 141530153, 424590459, 990711071, 2972133213, 6934977497, 20804932491]

約数ペア:

[(1, 20804932491), (3, 6934977497), (7, 2972133213), (21, 990711071), (49, 424590459), (147, 141530153)]