21135585

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23099}}^1$

素因数の和:23168

約数の個数: 16

約数和(自身を含む): 34372800

約数和(自身を除く): 13237215

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 23099, 69297, 115495, 346485, 1409039, 4227117, 7045195, 21135585]

約数ペア:

[(1, 21135585), (3, 7045195), (5, 4227117), (15, 1409039), (61, 346485), (183, 115495), (305, 69297), (915, 23099)]