21072273

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{1097}}^1$

素因数の和:1456

約数の個数: 16

約数和(自身を含む): 29689920

約数和(自身を除く): 8617647

約数列:

[1, 3, 19, 57, 337, 1011, 1097, 3291, 6403, 19209, 20843, 62529, 369689, 1109067, 7024091, 21072273]

約数ペア:

[(1, 21072273), (3, 7024091), (19, 1109067), (57, 369689), (337, 62529), (1011, 20843), (1097, 19209), (3291, 6403)]