19859281

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3907}}^1$

素因数の和:3960

約数の個数: 16

約数和(自身を含む): 23635584

約数和(自身を除く): 3776303

約数列:

[1, 13, 17, 23, 221, 299, 391, 3907, 5083, 50791, 66419, 89861, 863447, 1168193, 1527637, 19859281]

約数ペア:

[(1, 19859281), (13, 1527637), (17, 1168193), (23, 863447), (221, 89861), (299, 66419), (391, 50791), (3907, 5083)]