21668486

素因数分解:

$2^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{1741}}^1$

素因数の和:1884

約数の個数: 24

約数和(自身を含む): 38128896

約数和(自身を除く): 16460410

約数列:

[1, 2, 7, 14, 49, 98, 127, 254, 889, 1741, 1778, 3482, 6223, 12187, 12446, 24374, 85309, 170618, 221107, 442214, 1547749, 3095498, 10834243, 21668486]

約数ペア:

[(1, 21668486), (2, 10834243), (7, 3095498), (14, 1547749), (49, 442214), (98, 221107), (127, 170618), (254, 85309), (889, 24374), (1741, 12446), (1778, 12187), (3482, 6223)]