21071151

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{33931}}^1$

素因数の和:33963

約数の個数: 16

約数和(自身を含む): 32574720

約数和(自身を除く): 11503569

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 33931, 101793, 305379, 780413, 916137, 2341239, 7023717, 21071151]

約数ペア:

[(1, 21071151), (3, 7023717), (9, 2341239), (23, 916137), (27, 780413), (69, 305379), (207, 101793), (621, 33931)]