189871556

素因数分解:

$2^2\times 7^1\times {\mathrm{6781127}}^1$

素因数の和:6781138

約数の個数: 12

約数和(自身を含む): 379743168

約数和(自身を除く): 189871612

約数列:

[1, 2, 4, 7, 14, 28, 6781127, 13562254, 27124508, 47467889, 94935778, 189871556]

約数ペア:

[(1, 189871556), (2, 94935778), (4, 47467889), (7, 27124508), (14, 13562254), (28, 6781127)]