19900216

素因数分解:

$2^3\times 7^1\times {\mathrm{355361}}^1$

素因数の和:355374

約数の個数: 16

約数和(自身を含む): 42643440

約数和(自身を除く): 22743224

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 355361, 710722, 1421444, 2487527, 2842888, 4975054, 9950108, 19900216]

約数ペア:

[(1, 19900216), (2, 9950108), (4, 4975054), (7, 2842888), (8, 2487527), (14, 1421444), (28, 710722), (56, 355361)]