19893165

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{239}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 13284435

約数列:

[1, 3, 5, 15, 31, 93, 155, 179, 239, 465, 537, 717, 895, 1195, 2685, 3585, 5549, 7409, 16647, 22227, 27745, 37045, 42781, 83235, 111135, 128343, 213905, 641715, 1326211, 3978633, 6631055, 19893165]

約数ペア:

[(1, 19893165), (3, 6631055), (5, 3978633), (15, 1326211), (31, 641715), (93, 213905), (155, 128343), (179, 111135), (239, 83235), (465, 42781), (537, 37045), (717, 27745), (895, 22227), (1195, 16647), (2685, 7409), (3585, 5549)]