21343441

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1\times {\mathrm{419}}^1$

素因数の和:828

約数の個数: 16

約数和(自身を含む): 25804800

約数和(自身を除く): 4461359

約数列:

[1, 7, 19, 133, 383, 419, 2681, 2933, 7277, 7961, 50939, 55727, 160477, 1123339, 3049063, 21343441]

約数ペア:

[(1, 21343441), (7, 3049063), (19, 1123339), (133, 160477), (383, 55727), (419, 50939), (2681, 7961), (2933, 7277)]