81541719

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{24421}}^1$

素因数の和:24487

約数の個数: 24

約数和(自身を含む): 137153952

約数和(自身を除く): 55612233

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 24421, 73263, 170947, 219789, 512841, 1294313, 1538523, 3882939, 9060191, 11648817, 27180573, 81541719]

約数ペア:

[(1, 81541719), (3, 27180573), (7, 11648817), (9, 9060191), (21, 3882939), (53, 1538523), (63, 1294313), (159, 512841), (371, 219789), (477, 170947), (1113, 73263), (3339, 24421)]