20521472

素因数分解:

$2^9\times {\mathrm{149}}^1\times {\mathrm{269}}^1$

素因数の和:436

約数の個数: 40

約数和(自身を含む): 41431500

約数和(自身を除く): 20910028

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 149, 256, 269, 298, 512, 538, 596, 1076, 1192, 2152, 2384, 4304, 4768, 8608, 9536, 17216, 19072, 34432, 38144, 40081, 68864, 76288, 80162, 137728, 160324, 320648, 641296, 1282592, 2565184, 5130368, 10260736, 20521472]

約数ペア:

[(1, 20521472), (2, 10260736), (4, 5130368), (8, 2565184), (16, 1282592), (32, 641296), (64, 320648), (128, 160324), (149, 137728), (256, 80162), (269, 76288), (298, 68864), (512, 40081), (538, 38144), (596, 34432), (1076, 19072), (1192, 17216), (2152, 9536), (2384, 8608), (4304, 4768)]