21983872

素因数分解:

$2^7\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 24283328

約数列:

[1, 2, 4, 8, 16, 32, 41, 59, 64, 71, 82, 118, 128, 142, 164, 236, 284, 328, 472, 568, 656, 944, 1136, 1312, 1888, 2272, 2419, 2624, 2911, 3776, 4189, 4544, 4838, 5248, 5822, 7552, 8378, 9088, 9676, 11644, 16756, 19352, 23288, 33512, 38704, 46576, 67024, 77408, 93152, 134048, 154816, 171749, 186304, 268096, 309632, 343498, 372608, 536192, 686996, 1373992, 2747984, 5495968, 10991936, 21983872]

約数ペア:

[(1, 21983872), (2, 10991936), (4, 5495968), (8, 2747984), (16, 1373992), (32, 686996), (41, 536192), (59, 372608), (64, 343498), (71, 309632), (82, 268096), (118, 186304), (128, 171749), (142, 154816), (164, 134048), (236, 93152), (284, 77408), (328, 67024), (472, 46576), (568, 38704), (656, 33512), (944, 23288), (1136, 19352), (1312, 16756), (1888, 11644), (2272, 9676), (2419, 9088), (2624, 8378), (2911, 7552), (3776, 5822), (4189, 5248), (4544, 4838)]