18888201

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 10142199

約数列:

[1, 3, 9, 27, 59, 71, 167, 177, 213, 501, 531, 639, 1503, 1593, 1917, 4189, 4509, 9853, 11857, 12567, 29559, 35571, 37701, 88677, 106713, 113103, 266031, 320139, 699563, 2098689, 6296067, 18888201]

約数ペア:

[(1, 18888201), (3, 6296067), (9, 2098689), (27, 699563), (59, 320139), (71, 266031), (167, 113103), (177, 106713), (213, 88677), (501, 37701), (531, 35571), (639, 29559), (1503, 12567), (1593, 11857), (1917, 9853), (4189, 4509)]