208987916

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{7069}}^1$

素因数の和:7481

約数の個数: 24

約数和(自身を含む): 386022000

約数和(自身を除く): 177034084

約数列:

[1, 2, 4, 19, 38, 76, 389, 778, 1556, 7069, 7391, 14138, 14782, 28276, 29564, 134311, 268622, 537244, 2749841, 5499682, 10999364, 52246979, 104493958, 208987916]

約数ペア:

[(1, 208987916), (2, 104493958), (4, 52246979), (19, 10999364), (38, 5499682), (76, 2749841), (389, 537244), (778, 268622), (1556, 134311), (7069, 29564), (7391, 28276), (14138, 14782)]