21371469

素因数分解:

$3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{5273}}^1$

素因数の和:5476

約数の個数: 16

約数和(自身を含む): 32740992

約数和(自身を除く): 11369523

約数列:

[1, 3, 7, 21, 193, 579, 1351, 4053, 5273, 15819, 36911, 110733, 1017689, 3053067, 7123823, 21371469]

約数ペア:

[(1, 21371469), (3, 7123823), (7, 3053067), (21, 1017689), (193, 110733), (579, 36911), (1351, 15819), (4053, 5273)]