19918144

素因数分解:

$2^6\times {\mathrm{139}}^1\times {\mathrm{2239}}^1$

素因数の和:2390

約数の個数: 28

約数和(自身を含む): 39827200

約数和(自身を除く): 19909056

約数列:

[1, 2, 4, 8, 16, 32, 64, 139, 278, 556, 1112, 2224, 2239, 4448, 4478, 8896, 8956, 17912, 35824, 71648, 143296, 311221, 622442, 1244884, 2489768, 4979536, 9959072, 19918144]

約数ペア:

[(1, 19918144), (2, 9959072), (4, 4979536), (8, 2489768), (16, 1244884), (32, 622442), (64, 311221), (139, 143296), (278, 71648), (556, 35824), (1112, 17912), (2224, 8956), (2239, 8896), (4448, 4478)]