19945216

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{4583}}^1$

素因数の和:4616

約数の個数: 36

約数和(自身を含む): 42163632

約数和(自身を除く): 22218416

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 544, 1088, 2176, 4352, 4583, 9166, 18332, 36664, 73328, 77911, 146656, 155822, 293312, 311644, 586624, 623288, 1173248, 1246576, 2493152, 4986304, 9972608, 19945216]

約数ペア:

[(1, 19945216), (2, 9972608), (4, 4986304), (8, 2493152), (16, 1246576), (17, 1173248), (32, 623288), (34, 586624), (64, 311644), (68, 293312), (128, 155822), (136, 146656), (256, 77911), (272, 73328), (544, 36664), (1088, 18332), (2176, 9166), (4352, 4583)]