18880251

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{28477}}^1$

素因数の和:28510

約数の個数: 16

約数和(自身を含む): 28705824

約数和(自身を除く): 9825573

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 28477, 85431, 370201, 484109, 1110603, 1452327, 6293417, 18880251]

約数ペア:

[(1, 18880251), (3, 6293417), (13, 1452327), (17, 1110603), (39, 484109), (51, 370201), (221, 85431), (663, 28477)]