20521856

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{9431}}^1$

素因数の和:9462

約数の個数: 32

約数和(自身を含む): 43292880

約数和(自身を除く): 22771024

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 272, 544, 1088, 2176, 9431, 18862, 37724, 75448, 150896, 160327, 301792, 320654, 603584, 641308, 1207168, 1282616, 2565232, 5130464, 10260928, 20521856]

約数ペア:

[(1, 20521856), (2, 10260928), (4, 5130464), (8, 2565232), (16, 1282616), (17, 1207168), (32, 641308), (34, 603584), (64, 320654), (68, 301792), (128, 160327), (136, 150896), (272, 75448), (544, 37724), (1088, 18862), (2176, 9431)]