21049428

素因数分解:

$2^2\times 3^1\times {\mathrm{1051}}^1\times {\mathrm{1669}}^1$

素因数の和:2727

約数の個数: 24

約数和(自身を含む): 49191520

約数和(自身を除く): 28142092

約数列:

[1, 2, 3, 4, 6, 12, 1051, 1669, 2102, 3153, 3338, 4204, 5007, 6306, 6676, 10014, 12612, 20028, 1754119, 3508238, 5262357, 7016476, 10524714, 21049428]

約数ペア:

[(1, 21049428), (2, 10524714), (3, 7016476), (4, 5262357), (6, 3508238), (12, 1754119), (1051, 20028), (1669, 12612), (2102, 10014), (3153, 6676), (3338, 6306), (4204, 5007)]