19912139

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:434

約数の個数: 16

約数和(自身を含む): 22176000

約数和(自身を除く): 2263861

約数列:

[1, 13, 43, 179, 199, 559, 2327, 2587, 7697, 8557, 35621, 100061, 111241, 463073, 1531703, 19912139]

約数ペア:

[(1, 19912139), (13, 1531703), (43, 463073), (179, 111241), (199, 100061), (559, 35621), (2327, 8557), (2587, 7697)]