18643156

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{28949}}^1$

素因数の和:28983

約数の個数: 24

約数和(自身を含む): 38908800

約数和(自身を除く): 20265644

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 28949, 57898, 115796, 202643, 405286, 665827, 810572, 1331654, 2663308, 4660789, 9321578, 18643156]

約数ペア:

[(1, 18643156), (2, 9321578), (4, 4660789), (7, 2663308), (14, 1331654), (23, 810572), (28, 665827), (46, 405286), (92, 202643), (161, 115796), (322, 57898), (644, 28949)]