21243042

素因数分解:

$2^1\times 3^2\times {\mathrm{157}}^1\times {\mathrm{7517}}^1$

素因数の和:7682

約数の個数: 24

約数和(自身を含む): 46325916

約数和(自身を除く): 25082874

約数列:

[1, 2, 3, 6, 9, 18, 157, 314, 471, 942, 1413, 2826, 7517, 15034, 22551, 45102, 67653, 135306, 1180169, 2360338, 3540507, 7081014, 10621521, 21243042]

約数ペア:

[(1, 21243042), (2, 10621521), (3, 7081014), (6, 3540507), (9, 2360338), (18, 1180169), (157, 135306), (314, 67653), (471, 45102), (942, 22551), (1413, 15034), (2826, 7517)]