19889871

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:283

約数の個数: 24

約数和(自身を含む): 28242816

約数和(自身を除く): 8352945

約数列:

[1, 3, 23, 69, 83, 151, 249, 453, 529, 1587, 1909, 3473, 5727, 10419, 12533, 37599, 43907, 79879, 131721, 239637, 288259, 864777, 6629957, 19889871]

約数ペア:

[(1, 19889871), (3, 6629957), (23, 864777), (69, 288259), (83, 239637), (151, 131721), (249, 79879), (453, 43907), (529, 37599), (1587, 12533), (1909, 10419), (3473, 5727)]