18038601

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 31749120

約数和(自身を除く): 13710519

約数列:

[1, 3, 7, 9, 21, 23, 59, 63, 69, 161, 177, 207, 211, 413, 483, 531, 633, 1239, 1357, 1449, 1477, 1899, 3717, 4071, 4431, 4853, 9499, 12213, 12449, 13293, 14559, 28497, 33971, 37347, 43677, 85491, 87143, 101913, 112041, 261429, 286327, 305739, 784287, 858981, 2004289, 2576943, 6012867, 18038601]

約数ペア:

[(1, 18038601), (3, 6012867), (7, 2576943), (9, 2004289), (21, 858981), (23, 784287), (59, 305739), (63, 286327), (69, 261429), (161, 112041), (177, 101913), (207, 87143), (211, 85491), (413, 43677), (483, 37347), (531, 33971), (633, 28497), (1239, 14559), (1357, 13293), (1449, 12449), (1477, 12213), (1899, 9499), (3717, 4853), (4071, 4431)]