20211548

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{16787}}^1$

素因数の和:16841

約数の個数: 24

約数和(自身を含む): 41365632

約数和(自身を除く): 21154084

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 16787, 33574, 67148, 117509, 235018, 470036, 721841, 1443682, 2887364, 5052887, 10105774, 20211548]

約数ペア:

[(1, 20211548), (2, 10105774), (4, 5052887), (7, 2887364), (14, 1443682), (28, 721841), (43, 470036), (86, 235018), (172, 117509), (301, 67148), (602, 33574), (1204, 16787)]