12678421

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{577}}^1$

素因数の和:700

約数の個数: 16

約数和(自身を含む): 15055744

約数和(自身を除く): 2377323

約数列:

[1, 7, 43, 73, 301, 511, 577, 3139, 4039, 21973, 24811, 42121, 173677, 294847, 1811203, 12678421]

約数ペア:

[(1, 12678421), (7, 1811203), (43, 294847), (73, 173677), (301, 42121), (511, 24811), (577, 21973), (3139, 4039)]