3988747

素因数分解:

$7^3\times {\mathrm{29}}^1\times {\mathrm{401}}^1$

素因数の和:451

約数の個数: 16

約数和(自身を含む): 4824000

約数和(自身を除く): 835253

約数列:

[1, 7, 29, 49, 203, 343, 401, 1421, 2807, 9947, 11629, 19649, 81403, 137543, 569821, 3988747]

約数ペア:

[(1, 3988747), (7, 569821), (29, 137543), (49, 81403), (203, 19649), (343, 11629), (401, 9947), (1421, 2807)]