21643912

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{24821}}^1$

素因数の和:24936

約数の個数: 16

約数和(自身を含む): 40956300

約数和(自身を除く): 19312388

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 24821, 49642, 99284, 198568, 2705489, 5410978, 10821956, 21643912]

約数ペア:

[(1, 21643912), (2, 10821956), (4, 5410978), (8, 2705489), (109, 198568), (218, 99284), (436, 49642), (872, 24821)]