18910491

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{3221}}^1$

素因数の和:3346

約数の個数: 16

約数和(自身を含む): 26807040

約数和(自身を除く): 7896549

約数列:

[1, 3, 19, 57, 103, 309, 1957, 3221, 5871, 9663, 61199, 183597, 331763, 995289, 6303497, 18910491]

約数ペア:

[(1, 18910491), (3, 6303497), (19, 995289), (57, 331763), (103, 183597), (309, 61199), (1957, 9663), (3221, 5871)]