21760347

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{16987}}^1$

素因数の和:17058

約数の個数: 16

約数和(自身を含む): 33704192

約数和(自身を除く): 11943845

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 16987, 50961, 118909, 356727, 1036207, 3108621, 7253449, 21760347]

約数ペア:

[(1, 21760347), (3, 7253449), (7, 3108621), (21, 1036207), (61, 356727), (183, 118909), (427, 50961), (1281, 16987)]