21821637

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{1933}}^1$

素因数の和:2060

約数の個数: 16

約数和(自身を含む): 30077568

約数和(自身を除く): 8255931

約数列:

[1, 3, 53, 71, 159, 213, 1933, 3763, 5799, 11289, 102449, 137243, 307347, 411729, 7273879, 21821637]

約数ペア:

[(1, 21821637), (3, 7273879), (53, 411729), (71, 307347), (159, 137243), (213, 102449), (1933, 11289), (3763, 5799)]