21369856

素因数分解:

$2^{10}\times {\mathrm{41}}^1\times {\mathrm{509}}^1$

素因数の和:570

約数の個数: 44

約数和(自身を含む): 43846740

約数和(自身を除く): 22476884

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 128, 164, 256, 328, 509, 512, 656, 1018, 1024, 1312, 2036, 2624, 4072, 5248, 8144, 10496, 16288, 20869, 20992, 32576, 41738, 41984, 65152, 83476, 130304, 166952, 260608, 333904, 521216, 667808, 1335616, 2671232, 5342464, 10684928, 21369856]

約数ペア:

[(1, 21369856), (2, 10684928), (4, 5342464), (8, 2671232), (16, 1335616), (32, 667808), (41, 521216), (64, 333904), (82, 260608), (128, 166952), (164, 130304), (256, 83476), (328, 65152), (509, 41984), (512, 41738), (656, 32576), (1018, 20992), (1024, 20869), (1312, 16288), (2036, 10496), (2624, 8144), (4072, 5248)]