19898289

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{991}}^1$

素因数の和:1117

約数の個数: 24

約数和(自身を含む): 30331392

約数和(自身を除く): 10433103

約数列:

[1, 3, 9, 23, 69, 97, 207, 291, 873, 991, 2231, 2973, 6693, 8919, 20079, 22793, 68379, 96127, 205137, 288381, 865143, 2210921, 6632763, 19898289]

約数ペア:

[(1, 19898289), (3, 6632763), (9, 2210921), (23, 865143), (69, 288381), (97, 205137), (207, 96127), (291, 68379), (873, 22793), (991, 20079), (2231, 8919), (2973, 6693)]