21051824

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{12071}}^1$

素因数の和:12188

約数の個数: 20

約数和(自身を含む): 41165520

約数和(自身を除く): 20113696

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 12071, 24142, 48284, 96568, 193136, 1315739, 2631478, 5262956, 10525912, 21051824]

約数ペア:

[(1, 21051824), (2, 10525912), (4, 5262956), (8, 2631478), (16, 1315739), (109, 193136), (218, 96568), (436, 48284), (872, 24142), (1744, 12071)]