19998512

素因数分解:

$2^4\times {\mathrm{613}}^1\times {\mathrm{2039}}^1$

素因数の和:2660

約数の個数: 20

約数和(自身を含む): 38829360

約数和(自身を除く): 18830848

約数列:

[1, 2, 4, 8, 16, 613, 1226, 2039, 2452, 4078, 4904, 8156, 9808, 16312, 32624, 1249907, 2499814, 4999628, 9999256, 19998512]

約数ペア:

[(1, 19998512), (2, 9999256), (4, 4999628), (8, 2499814), (16, 1249907), (613, 32624), (1226, 16312), (2039, 9808), (2452, 8156), (4078, 4904)]