19969665

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1709}}^1$

素因数の和:1777

約数の個数: 32

約数和(自身を含む): 34473600

約数和(自身を除く): 14503935

約数列:

[1, 3, 5, 15, 19, 41, 57, 95, 123, 205, 285, 615, 779, 1709, 2337, 3895, 5127, 8545, 11685, 25635, 32471, 70069, 97413, 162355, 210207, 350345, 487065, 1051035, 1331311, 3993933, 6656555, 19969665]

約数ペア:

[(1, 19969665), (3, 6656555), (5, 3993933), (15, 1331311), (19, 1051035), (41, 487065), (57, 350345), (95, 210207), (123, 162355), (205, 97413), (285, 70069), (615, 32471), (779, 25635), (1709, 11685), (2337, 8545), (3895, 5127)]