17918187

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{947}}^1$

素因数の和:1027

約数の個数: 32

約数和(自身を含む): 29486592

約数和(自身を除く): 11568405

約数列:

[1, 3, 7, 17, 21, 51, 53, 119, 159, 357, 371, 901, 947, 1113, 2703, 2841, 6307, 6629, 16099, 18921, 19887, 48297, 50191, 112693, 150573, 338079, 351337, 853247, 1054011, 2559741, 5972729, 17918187]

約数ペア:

[(1, 17918187), (3, 5972729), (7, 2559741), (17, 1054011), (21, 853247), (51, 351337), (53, 338079), (119, 150573), (159, 112693), (357, 50191), (371, 48297), (901, 19887), (947, 18921), (1113, 16099), (2703, 6629), (2841, 6307)]