21295309

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{4561}}^1$

素因数の和:4620

約数の個数: 16

約数和(自身を含む): 26277120

約数和(自身を除く): 4981811

約数列:

[1, 7, 23, 29, 161, 203, 667, 4561, 4669, 31927, 104903, 132269, 734321, 925883, 3042187, 21295309]

約数ペア:

[(1, 21295309), (7, 3042187), (23, 925883), (29, 734321), (161, 132269), (203, 104903), (667, 31927), (4561, 4669)]