21065272

素因数分解:

$2^3\times {\mathrm{1021}}^1\times {\mathrm{2579}}^1$

素因数の和:3606

約数の個数: 16

約数和(自身を含む): 39551400

約数和(自身を除く): 18486128

約数列:

[1, 2, 4, 8, 1021, 2042, 2579, 4084, 5158, 8168, 10316, 20632, 2633159, 5266318, 10532636, 21065272]

約数ペア:

[(1, 21065272), (2, 10532636), (4, 5266318), (8, 2633159), (1021, 20632), (2042, 10316), (2579, 8168), (4084, 5158)]