3944647

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{223}}^1$

素因数の和:275

約数の個数: 18

約数和(自身を含む): 4864608

約数和(自身を除く): 919961

約数列:

[1, 7, 19, 49, 133, 223, 361, 931, 1561, 2527, 4237, 10927, 17689, 29659, 80503, 207613, 563521, 3944647]

約数ペア:

[(1, 3944647), (7, 563521), (19, 207613), (49, 80503), (133, 29659), (223, 17689), (361, 10927), (931, 4237), (1561, 2527)]