19890290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4241}}^1$

素因数の和:4322

約数の個数: 32

約数和(自身を含む): 41537664

約数和(自身を除く): 21647374

約数列:

[1, 2, 5, 7, 10, 14, 35, 67, 70, 134, 335, 469, 670, 938, 2345, 4241, 4690, 8482, 21205, 29687, 42410, 59374, 148435, 284147, 296870, 568294, 1420735, 1989029, 2841470, 3978058, 9945145, 19890290]

約数ペア:

[(1, 19890290), (2, 9945145), (5, 3978058), (7, 2841470), (10, 1989029), (14, 1420735), (35, 568294), (67, 296870), (70, 284147), (134, 148435), (335, 59374), (469, 42410), (670, 29687), (938, 21205), (2345, 8482), (4241, 4690)]