21706467

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{1123}}^1$

素因数の和:1522

約数の個数: 16

約数和(自身を含む): 30752640

約数和(自身を除く): 9046173

約数列:

[1, 3, 17, 51, 379, 1123, 1137, 3369, 6443, 19091, 19329, 57273, 425617, 1276851, 7235489, 21706467]

約数ペア:

[(1, 21706467), (3, 7235489), (17, 1276851), (51, 425617), (379, 57273), (1123, 19329), (1137, 19091), (3369, 6443)]