20993907

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{773}}^1\times {\mathrm{823}}^1$

素因数の和:1610

約数の個数: 16

約数和(自身を含む): 30613248

約数和(自身を除く): 9619341

約数列:

[1, 3, 11, 33, 773, 823, 2319, 2469, 8503, 9053, 25509, 27159, 636179, 1908537, 6997969, 20993907]

約数ペア:

[(1, 20993907), (3, 6997969), (11, 1908537), (33, 636179), (773, 27159), (823, 25509), (2319, 9053), (2469, 8503)]