18005918

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1$

素因数の和:512

約数の個数: 32

約数和(自身を含む): 32486400

約数和(自身を除く): 14480482

約数列:

[1, 2, 7, 14, 23, 46, 161, 199, 281, 322, 398, 562, 1393, 1967, 2786, 3934, 4577, 6463, 9154, 12926, 32039, 45241, 55919, 64078, 90482, 111838, 391433, 782866, 1286137, 2572274, 9002959, 18005918]

約数ペア:

[(1, 18005918), (2, 9002959), (7, 2572274), (14, 1286137), (23, 782866), (46, 391433), (161, 111838), (199, 90482), (281, 64078), (322, 55919), (398, 45241), (562, 32039), (1393, 12926), (1967, 9154), (2786, 6463), (3934, 4577)]