21225856

素因数分解:

$2^7\times {\mathrm{139}}^1\times {\mathrm{1193}}^1$

素因数の和:1346

約数の個数: 32

約数和(自身を含む): 42625800

約数和(自身を除く): 21399944

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 139, 278, 556, 1112, 1193, 2224, 2386, 4448, 4772, 8896, 9544, 17792, 19088, 38176, 76352, 152704, 165827, 331654, 663308, 1326616, 2653232, 5306464, 10612928, 21225856]

約数ペア:

[(1, 21225856), (2, 10612928), (4, 5306464), (8, 2653232), (16, 1326616), (32, 663308), (64, 331654), (128, 165827), (139, 152704), (278, 76352), (556, 38176), (1112, 19088), (1193, 17792), (2224, 9544), (2386, 8896), (4448, 4772)]