21492149

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{307}}^1$

素因数の和:524

約数の個数: 16

約数和(自身を含む): 25162368

約数和(自身を除く): 3670219

約数列:

[1, 7, 73, 137, 307, 511, 959, 2149, 10001, 22411, 42059, 70007, 156877, 294413, 3070307, 21492149]

約数ペア:

[(1, 21492149), (7, 3070307), (73, 294413), (137, 156877), (307, 70007), (511, 42059), (959, 22411), (2149, 10001)]