21005431386

素因数分解:

$2^1\times 3^1\times {\mathrm{8933}}^1\times {\mathrm{391907}}^1$

素因数の和:400845

約数の個数: 16

約数和(自身を含む): 42015672864

約数和(自身を除く): 21010241478

約数列:

[1, 2, 3, 6, 8933, 17866, 26799, 53598, 391907, 783814, 1175721, 2351442, 3500905231, 7001810462, 10502715693, 21005431386]

約数ペア:

[(1, 21005431386), (2, 10502715693), (3, 7001810462), (6, 3500905231), (8933, 2351442), (17866, 1175721), (26799, 783814), (53598, 391907)]