19187973

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2957}}^1$

素因数の和:3073

約数の個数: 24

約数和(自身を含む): 31993728

約数和(自身を除く): 12805755

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 2957, 6489, 8871, 20699, 26613, 62097, 186291, 304571, 913713, 2131997, 2741139, 6395991, 19187973]

約数ペア:

[(1, 19187973), (3, 6395991), (7, 2741139), (9, 2131997), (21, 913713), (63, 304571), (103, 186291), (309, 62097), (721, 26613), (927, 20699), (2163, 8871), (2957, 6489)]