21319353

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19577}}^1$

素因数の和:19605

約数の個数: 18

約数和(自身を含む): 33850362

約数和(自身を除く): 12531009

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 19577, 58731, 176193, 215347, 646041, 1938123, 2368817, 7106451, 21319353]

約数ペア:

[(1, 21319353), (3, 7106451), (9, 2368817), (11, 1938123), (33, 646041), (99, 215347), (121, 176193), (363, 58731), (1089, 19577)]