21524289

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{727}}^1$

素因数の和:940

約数の個数: 16

約数和(自身を含む): 29352960

約数和(自身を除く): 7828671

約数列:

[1, 3, 71, 139, 213, 417, 727, 2181, 9869, 29607, 51617, 101053, 154851, 303159, 7174763, 21524289]

約数ペア:

[(1, 21524289), (3, 7174763), (71, 303159), (139, 154851), (213, 101053), (417, 51617), (727, 29607), (2181, 9869)]