20771584

素因数分解:

$2^8\times {\mathrm{41}}^1\times {\mathrm{1979}}^1$

素因数の和:2036

約数の個数: 36

約数和(自身を含む): 42494760

約数和(自身を除く): 21723176

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 128, 164, 256, 328, 656, 1312, 1979, 2624, 3958, 5248, 7916, 10496, 15832, 31664, 63328, 81139, 126656, 162278, 253312, 324556, 506624, 649112, 1298224, 2596448, 5192896, 10385792, 20771584]

約数ペア:

[(1, 20771584), (2, 10385792), (4, 5192896), (8, 2596448), (16, 1298224), (32, 649112), (41, 506624), (64, 324556), (82, 253312), (128, 162278), (164, 126656), (256, 81139), (328, 63328), (656, 31664), (1312, 15832), (1979, 10496), (2624, 7916), (3958, 5248)]