21093783

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{881}}^1$

素因数の和:1254

約数の個数: 16

約数和(自身を含む): 29465856

約数和(自身を除く): 8372073

約数列:

[1, 3, 23, 69, 347, 881, 1041, 2643, 7981, 20263, 23943, 60789, 305707, 917121, 7031261, 21093783]

約数ペア:

[(1, 21093783), (3, 7031261), (23, 917121), (69, 305707), (347, 60789), (881, 23943), (1041, 20263), (2643, 7981)]