21468489

素因数分解:

$3^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{2237}}^1$

素因数の和:2704

約数の個数: 16

約数和(自身を含む): 32800128

約数和(自身を除く): 11331639

約数列:

[1, 3, 7, 21, 457, 1371, 2237, 3199, 6711, 9597, 15659, 46977, 1022309, 3066927, 7156163, 21468489]

約数ペア:

[(1, 21468489), (3, 7156163), (7, 3066927), (21, 1022309), (457, 46977), (1371, 15659), (2237, 9597), (3199, 6711)]