78213261

素因数分解:

$3^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{2621}}^1$

素因数の和:2674

約数の個数: 32

約数和(自身を含む): 125856000

約数和(自身を除く): 47642739

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 343, 609, 1029, 1421, 2621, 4263, 7863, 9947, 18347, 29841, 55041, 76009, 128429, 228027, 385287, 532063, 899003, 1596189, 2697009, 3724441, 11173323, 26071087, 78213261]

約数ペア:

[(1, 78213261), (3, 26071087), (7, 11173323), (21, 3724441), (29, 2697009), (49, 1596189), (87, 899003), (147, 532063), (203, 385287), (343, 228027), (609, 128429), (1029, 76009), (1421, 55041), (2621, 29841), (4263, 18347), (7863, 9947)]