21488336

素因数分解:

$2^4\times {\mathrm{1091}}^1\times {\mathrm{1231}}^1$

素因数の和:2330

約数の個数: 20

約数和(自身を含む): 41705664

約数和(自身を除く): 20217328

約数列:

[1, 2, 4, 8, 16, 1091, 1231, 2182, 2462, 4364, 4924, 8728, 9848, 17456, 19696, 1343021, 2686042, 5372084, 10744168, 21488336]

約数ペア:

[(1, 21488336), (2, 10744168), (4, 5372084), (8, 2686042), (16, 1343021), (1091, 19696), (1231, 17456), (2182, 9848), (2462, 8728), (4364, 4924)]