21596564

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{44621}}^1$

素因数の和:44647

約数の個数: 18

約数和(自身を含む): 41543082

約数和(自身を除く): 19946518

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 44621, 89242, 178484, 490831, 981662, 1963324, 5399141, 10798282, 21596564]

約数ペア:

[(1, 21596564), (2, 10798282), (4, 5399141), (11, 1963324), (22, 981662), (44, 490831), (121, 178484), (242, 89242), (484, 44621)]