21298042

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{8581}}^1$

素因数の和:8673

約数の個数: 16

約数和(自身を含む): 34293672

約数和(自身を除く): 12995630

約数列:

[1, 2, 17, 34, 73, 146, 1241, 2482, 8581, 17162, 145877, 291754, 626413, 1252826, 10649021, 21298042]

約数ペア:

[(1, 21298042), (2, 10649021), (17, 1252826), (34, 626413), (73, 291754), (146, 145877), (1241, 17162), (2482, 8581)]