21561243

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{10711}}^1$

素因数の和:10786

約数の個数: 16

約数和(自身を含む): 31878912

約数和(自身を除く): 10317669

約数列:

[1, 3, 11, 33, 61, 183, 671, 2013, 10711, 32133, 117821, 353463, 653371, 1960113, 7187081, 21561243]

約数ペア:

[(1, 21561243), (3, 7187081), (11, 1960113), (33, 653371), (61, 353463), (183, 117821), (671, 32133), (2013, 10711)]