27216021

素因数分解:

$3^1\times 7^3\times {\mathrm{26449}}^1$

素因数の和:26473

約数の個数: 16

約数和(自身を含む): 42320000

約数和(自身を除く): 15103979

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 26449, 79347, 185143, 555429, 1296001, 3888003, 9072007, 27216021]

約数ペア:

[(1, 27216021), (3, 9072007), (7, 3888003), (21, 1296001), (49, 555429), (147, 185143), (343, 79347), (1029, 26449)]