19389741

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{7759}}^1$

素因数の和:7793

約数の個数: 24

約数和(自身を含む): 31847040

約数和(自身を除く): 12457299

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 7759, 23277, 54313, 131903, 162939, 380191, 395709, 923321, 1140573, 2769963, 6463247, 19389741]

約数ペア:

[(1, 19389741), (3, 6463247), (7, 2769963), (17, 1140573), (21, 923321), (49, 395709), (51, 380191), (119, 162939), (147, 131903), (357, 54313), (833, 23277), (2499, 7759)]