11111121

素因数分解:

$3^3\times 7^1\times {\mathrm{58789}}^1$

素因数の和:58805

約数の個数: 16

約数和(自身を含む): 18812800

約数和(自身を除く): 7701679

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 58789, 176367, 411523, 529101, 1234569, 1587303, 3703707, 11111121]

約数ペア:

[(1, 11111121), (3, 3703707), (7, 1587303), (9, 1234569), (21, 529101), (27, 411523), (63, 176367), (189, 58789)]