18804963261

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1\times {\mathrm{1621}}^1$

素因数の和:2146

約数の個数: 64

約数和(自身を含む): 30419896320

約数和(自身を除く): 11614933059

約数列:

[1, 3, 7, 21, 29, 43, 87, 129, 203, 301, 443, 609, 903, 1247, 1329, 1621, 3101, 3741, 4863, 8729, 9303, 11347, 12847, 19049, 26187, 34041, 38541, 47009, 57147, 69703, 89929, 133343, 141027, 209109, 269787, 329063, 400029, 487921, 552421, 718103, 987189, 1463763, 1657263, 2021387, 2154309, 3866947, 5026721, 6064161, 11600841, 14149709, 15080163, 20824987, 30878429, 42449127, 62474961, 92635287, 145774909, 216149003, 437324727, 648447009, 895474441, 2686423323, 6268321087, 18804963261]

約数ペア:

[(1, 18804963261), (3, 6268321087), (7, 2686423323), (21, 895474441), (29, 648447009), (43, 437324727), (87, 216149003), (129, 145774909), (203, 92635287), (301, 62474961), (443, 42449127), (609, 30878429), (903, 20824987), (1247, 15080163), (1329, 14149709), (1621, 11600841), (3101, 6064161), (3741, 5026721), (4863, 3866947), (8729, 2154309), (9303, 2021387), (11347, 1657263), (12847, 1463763), (19049, 987189), (26187, 718103), (34041, 552421), (38541, 487921), (47009, 400029), (57147, 329063), (69703, 269787), (89929, 209109), (133343, 141027)]