19431088

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{8737}}^1$

素因数の和:8884

約数の個数: 20

約数和(自身を含む): 37922920

約数和(自身を除く): 18491832

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 8737, 17474, 34948, 69896, 139792, 1214443, 2428886, 4857772, 9715544, 19431088]

約数ペア:

[(1, 19431088), (2, 9715544), (4, 4857772), (8, 2428886), (16, 1214443), (139, 139792), (278, 69896), (556, 34948), (1112, 17474), (2224, 8737)]