1971421

素因数分解:

${\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:208

約数の個数: 12

約数和(自身を含む): 2145792

約数和(自身を除く): 174371

約数列:

[1, 19, 43, 127, 361, 817, 2413, 5461, 15523, 45847, 103759, 1971421]

約数ペア:

[(1, 1971421), (19, 103759), (43, 45847), (127, 15523), (361, 5461), (817, 2413)]