21135536

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{12119}}^1$

素因数の和:12236

約数の個数: 20

約数和(自身を含む): 41329200

約数和(自身を除く): 20193664

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 12119, 24238, 48476, 96952, 193904, 1320971, 2641942, 5283884, 10567768, 21135536]

約数ペア:

[(1, 21135536), (2, 10567768), (4, 5283884), (8, 2641942), (16, 1320971), (109, 193904), (218, 96952), (436, 48476), (872, 24238), (1744, 12119)]