21080061

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{14731}}^1$

素因数の和:14793

約数の個数: 16

約数和(自身を含む): 31821120

約数和(自身を除く): 10741059

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 14731, 44193, 132579, 397737, 780743, 2342229, 7026687, 21080061]

約数ペア:

[(1, 21080061), (3, 7026687), (9, 2342229), (27, 780743), (53, 397737), (159, 132579), (477, 44193), (1431, 14731)]