20199723

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 29855232

約数和(自身を除く): 9655509

約数列:

[1, 3, 17, 43, 51, 61, 129, 151, 183, 453, 731, 1037, 2193, 2567, 2623, 3111, 6493, 7701, 7869, 9211, 19479, 27633, 44591, 110381, 133773, 156587, 331143, 396073, 469761, 1188219, 6733241, 20199723]

約数ペア:

[(1, 20199723), (3, 6733241), (17, 1188219), (43, 469761), (51, 396073), (61, 331143), (129, 156587), (151, 133773), (183, 110381), (453, 44591), (731, 27633), (1037, 19479), (2193, 9211), (2567, 7869), (2623, 7701), (3111, 6493)]