21436989

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{44383}}^1$

素因数の和:44416

約数の個数: 16

約数和(自身を含む): 34086912

約数和(自身を除く): 12649923

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 44383, 133149, 310681, 932043, 1020809, 3062427, 7145663, 21436989]

約数ペア:

[(1, 21436989), (3, 7145663), (7, 3062427), (21, 1020809), (23, 932043), (69, 310681), (161, 133149), (483, 44383)]