21897189

素因数分解:

$3^3\times {\mathrm{149}}^1\times {\mathrm{5443}}^1$

素因数の和:5601

約数の個数: 16

約数和(自身を含む): 32664000

約数和(自身を除く): 10766811

約数列:

[1, 3, 9, 27, 149, 447, 1341, 4023, 5443, 16329, 48987, 146961, 811007, 2433021, 7299063, 21897189]

約数ペア:

[(1, 21897189), (3, 7299063), (9, 2433021), (27, 811007), (149, 146961), (447, 48987), (1341, 16329), (4023, 5443)]