19269718

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{1213}}^1$

素因数の和:1288

約数の個数: 24

約数和(自身を含む): 31991328

約数和(自身を除く): 12721610

約数列:

[1, 2, 13, 26, 47, 94, 169, 338, 611, 1213, 1222, 2426, 7943, 15769, 15886, 31538, 57011, 114022, 204997, 409994, 741143, 1482286, 9634859, 19269718]

約数ペア:

[(1, 19269718), (2, 9634859), (13, 1482286), (26, 741143), (47, 409994), (94, 204997), (169, 114022), (338, 57011), (611, 31538), (1213, 15886), (1222, 15769), (2426, 7943)]