19825821

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{2053}}^1$

素因数の和:2125

約数の個数: 24

約数和(自身を含む): 30440280

約数和(自身を除く): 10614459

約数列:

[1, 3, 9, 29, 37, 87, 111, 261, 333, 1073, 2053, 3219, 6159, 9657, 18477, 59537, 75961, 178611, 227883, 535833, 683649, 2202869, 6608607, 19825821]

約数ペア:

[(1, 19825821), (3, 6608607), (9, 2202869), (29, 683649), (37, 535833), (87, 227883), (111, 178611), (261, 75961), (333, 59537), (1073, 18477), (2053, 9657), (3219, 6159)]