19406288

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1553}}^1$

素因数の和:1643

約数の個数: 40

約数和(自身を含む): 41622336

約数和(自身を除く): 22216048

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 71, 88, 142, 176, 284, 568, 781, 1136, 1553, 1562, 3106, 3124, 6212, 6248, 12424, 12496, 17083, 24848, 34166, 68332, 110263, 136664, 220526, 273328, 441052, 882104, 1212893, 1764208, 2425786, 4851572, 9703144, 19406288]

約数ペア:

[(1, 19406288), (2, 9703144), (4, 4851572), (8, 2425786), (11, 1764208), (16, 1212893), (22, 882104), (44, 441052), (71, 273328), (88, 220526), (142, 136664), (176, 110263), (284, 68332), (568, 34166), (781, 24848), (1136, 17083), (1553, 12496), (1562, 12424), (3106, 6248), (3124, 6212)]