21120448

素因数分解:

$2^6\times {\mathrm{331}}^1\times {\mathrm{997}}^1$

素因数の和:1340

約数の個数: 28

約数和(自身を含む): 42079672

約数和(自身を除く): 20959224

約数列:

[1, 2, 4, 8, 16, 32, 64, 331, 662, 997, 1324, 1994, 2648, 3988, 5296, 7976, 10592, 15952, 21184, 31904, 63808, 330007, 660014, 1320028, 2640056, 5280112, 10560224, 21120448]

約数ペア:

[(1, 21120448), (2, 10560224), (4, 5280112), (8, 2640056), (16, 1320028), (32, 660014), (64, 330007), (331, 63808), (662, 31904), (997, 21184), (1324, 15952), (1994, 10592), (2648, 7976), (3988, 5296)]