21950769

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1\times {\mathrm{647}}^1$

素因数の和:956

約数の個数: 16

約数和(自身を含む): 30108672

約数和(自身を除く): 8157903

約数列:

[1, 3, 43, 129, 263, 647, 789, 1941, 11309, 27821, 33927, 83463, 170161, 510483, 7316923, 21950769]

約数ペア:

[(1, 21950769), (3, 7316923), (43, 510483), (129, 170161), (263, 83463), (647, 33927), (789, 27821), (1941, 11309)]