21442816

素因数分解:

$2^8\times {\mathrm{83761}}^1$

素因数の和:83777

約数の個数: 18

約数和(自身を含む): 42802382

約数和(自身を除く): 21359566

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 83761, 167522, 335044, 670088, 1340176, 2680352, 5360704, 10721408, 21442816]

約数ペア:

[(1, 21442816), (2, 10721408), (4, 5360704), (8, 2680352), (16, 1340176), (32, 670088), (64, 335044), (128, 167522), (256, 83761)]