18740997

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{709}}^1$

素因数の和:818

約数の個数: 32

約数和(自身を含む): 30672000

約数和(自身を除く): 11931003

約数列:

[1, 3, 9, 11, 27, 33, 89, 99, 267, 297, 709, 801, 979, 2127, 2403, 2937, 6381, 7799, 8811, 19143, 23397, 26433, 63101, 70191, 189303, 210573, 567909, 694111, 1703727, 2082333, 6246999, 18740997]

約数ペア:

[(1, 18740997), (3, 6246999), (9, 2082333), (11, 1703727), (27, 694111), (33, 567909), (89, 210573), (99, 189303), (267, 70191), (297, 63101), (709, 26433), (801, 23397), (979, 19143), (2127, 8811), (2403, 7799), (2937, 6381)]