20120782689

素因数分解:

$3^2\times 7^1\times {\mathrm{319377503}}^1$

素因数の和:319377516

約数の個数: 12

約数和(自身を含む): 33215260416

約数和(自身を除く): 13094477727

約数列:

[1, 3, 7, 9, 21, 63, 319377503, 958132509, 2235642521, 2874397527, 6706927563, 20120782689]

約数ペア:

[(1, 20120782689), (3, 6706927563), (7, 2874397527), (9, 2235642521), (21, 958132509), (63, 319377503)]