21589813

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{433}}^1$

素因数の和:876

約数の個数: 16

約数和(自身を含む): 26248320

約数和(自身を除く): 4658507

約数列:

[1, 7, 17, 119, 419, 433, 2933, 3031, 7123, 7361, 49861, 51527, 181427, 1269989, 3084259, 21589813]

約数ペア:

[(1, 21589813), (7, 3084259), (17, 1269989), (119, 181427), (419, 51527), (433, 49861), (2933, 7361), (3031, 7123)]