21958433

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{1543}}^1$

素因数の和:1676

約数の個数: 16

約数和(自身を含む): 26680320

約数和(自身を除く): 4721887

約数列:

[1, 7, 19, 107, 133, 749, 1543, 2033, 10801, 14231, 29317, 165101, 205219, 1155707, 3136919, 21958433]

約数ペア:

[(1, 21958433), (7, 3136919), (19, 1155707), (107, 205219), (133, 165101), (749, 29317), (1543, 14231), (2033, 10801)]