21045954

素因数分解:

$2^1\times 3^1\times {\mathrm{787}}^1\times {\mathrm{4457}}^1$

素因数の和:5249

約数の個数: 16

約数和(自身を含む): 42154848

約数和(自身を除く): 21108894

約数列:

[1, 2, 3, 6, 787, 1574, 2361, 4457, 4722, 8914, 13371, 26742, 3507659, 7015318, 10522977, 21045954]

約数ペア:

[(1, 21045954), (2, 10522977), (3, 7015318), (6, 3507659), (787, 26742), (1574, 13371), (2361, 8914), (4457, 4722)]