18686978

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{7529}}^1$

素因数の和:7621

約数の個数: 16

約数和(自身を含む): 30089880

約数和(自身を除く): 11402902

約数列:

[1, 2, 17, 34, 73, 146, 1241, 2482, 7529, 15058, 127993, 255986, 549617, 1099234, 9343489, 18686978]

約数ペア:

[(1, 18686978), (2, 9343489), (17, 1099234), (34, 549617), (73, 255986), (146, 127993), (1241, 15058), (2482, 7529)]