21688329

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29269}}^1$

素因数の和:29304

約数の個数: 16

約数和(自身を含む): 32782400

約数和(自身を除く): 11094071

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 29269, 87807, 380497, 556111, 1141491, 1668333, 7229443, 21688329]

約数ペア:

[(1, 21688329), (3, 7229443), (13, 1668333), (19, 1141491), (39, 556111), (57, 380497), (247, 87807), (741, 29269)]