219219962

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{20123}}^1$

素因数の和:20557

約数の個数: 16

約数和(自身を含む): 354987360

約数和(自身を除く): 135767398

約数列:

[1, 2, 13, 26, 419, 838, 5447, 10894, 20123, 40246, 261599, 523198, 8431537, 16863074, 109609981, 219219962]

約数ペア:

[(1, 219219962), (2, 109609981), (13, 16863074), (26, 8431537), (419, 523198), (838, 261599), (5447, 40246), (10894, 20123)]