20970256

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{6653}}^1$

素因数の和:6858

約数の個数: 20

約数和(自身を含む): 40842252

約数和(自身を除く): 19871996

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 6653, 13306, 26612, 53224, 106448, 1310641, 2621282, 5242564, 10485128, 20970256]

約数ペア:

[(1, 20970256), (2, 10485128), (4, 5242564), (8, 2621282), (16, 1310641), (197, 106448), (394, 53224), (788, 26612), (1576, 13306), (3152, 6653)]