21556089

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3407}}^1$

素因数の和:3469

約数の個数: 24

約数和(自身を含む): 33671040

約数和(自身を除く): 12114951

約数列:

[1, 3, 9, 19, 37, 57, 111, 171, 333, 703, 2109, 3407, 6327, 10221, 30663, 64733, 126059, 194199, 378177, 582597, 1134531, 2395121, 7185363, 21556089]

約数ペア:

[(1, 21556089), (3, 7185363), (9, 2395121), (19, 1134531), (37, 582597), (57, 378177), (111, 194199), (171, 126059), (333, 64733), (703, 30663), (2109, 10221), (3407, 6327)]