19810846

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{1153}}^1$

素因数の和:1248

約数の個数: 24

約数和(自身を含む): 33152112

約数和(自身を除く): 13341266

約数列:

[1, 2, 11, 22, 71, 121, 142, 242, 781, 1153, 1562, 2306, 8591, 12683, 17182, 25366, 81863, 139513, 163726, 279026, 900493, 1800986, 9905423, 19810846]

約数ペア:

[(1, 19810846), (2, 9905423), (11, 1800986), (22, 900493), (71, 279026), (121, 163726), (142, 139513), (242, 81863), (781, 25366), (1153, 17182), (1562, 12683), (2306, 8591)]