19893855

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{83}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 35118720

約数和(自身を除く): 15224865

約数列:

[1, 3, 5, 15, 19, 29, 57, 83, 87, 95, 145, 249, 285, 415, 435, 551, 841, 1245, 1577, 1653, 2407, 2523, 2755, 4205, 4731, 7221, 7885, 8265, 12035, 12615, 15979, 23655, 36105, 45733, 47937, 69803, 79895, 137199, 209409, 228665, 239685, 349015, 685995, 1047045, 1326257, 3978771, 6631285, 19893855]

約数ペア:

[(1, 19893855), (3, 6631285), (5, 3978771), (15, 1326257), (19, 1047045), (29, 685995), (57, 349015), (83, 239685), (87, 228665), (95, 209409), (145, 137199), (249, 79895), (285, 69803), (415, 47937), (435, 45733), (551, 36105), (841, 23655), (1245, 15979), (1577, 12615), (1653, 12035), (2407, 8265), (2523, 7885), (2755, 7221), (4205, 4731)]