21611648

素因数分解:

$2^7\times {\mathrm{109}}^1\times {\mathrm{1549}}^1$

素因数の和:1672

約数の個数: 32

約数和(自身を含む): 43477500

約数和(自身を除く): 21865852

約数列:

[1, 2, 4, 8, 16, 32, 64, 109, 128, 218, 436, 872, 1549, 1744, 3098, 3488, 6196, 6976, 12392, 13952, 24784, 49568, 99136, 168841, 198272, 337682, 675364, 1350728, 2701456, 5402912, 10805824, 21611648]

約数ペア:

[(1, 21611648), (2, 10805824), (4, 5402912), (8, 2701456), (16, 1350728), (32, 675364), (64, 337682), (109, 198272), (128, 168841), (218, 99136), (436, 49568), (872, 24784), (1549, 13952), (1744, 12392), (3098, 6976), (3488, 6196)]