18680554

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{5563}}^1$

素因数の和:5661

約数の個数: 16

約数和(自身を含む): 29644992

約数和(自身を除く): 10964438

約数列:

[1, 2, 23, 46, 73, 146, 1679, 3358, 5563, 11126, 127949, 255898, 406099, 812198, 9340277, 18680554]

約数ペア:

[(1, 18680554), (2, 9340277), (23, 812198), (46, 406099), (73, 255898), (146, 127949), (1679, 11126), (3358, 5563)]