19986003

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{31277}}^1$

素因数の和:31354

約数の個数: 12

約数和(自身を含む): 29276208

約数和(自身を除く): 9290205

約数列:

[1, 3, 9, 71, 213, 639, 31277, 93831, 281493, 2220667, 6662001, 19986003]

約数ペア:

[(1, 19986003), (3, 6662001), (9, 2220667), (71, 281493), (213, 93831), (639, 31277)]