21071499

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{1051}}^1$

素因数の和:1258

約数の個数: 16

約数和(自身を含む): 28984704

約数和(自身を除く): 7913205

約数列:

[1, 3, 41, 123, 163, 489, 1051, 3153, 6683, 20049, 43091, 129273, 171313, 513939, 7023833, 21071499]

約数ペア:

[(1, 21071499), (3, 7023833), (41, 513939), (123, 171313), (163, 129273), (489, 43091), (1051, 20049), (3153, 6683)]