20894307

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{26891}}^1$

素因数の和:26938

約数の個数: 16

約数和(自身を含む): 32700672

約数和(自身を除く): 11806365

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 26891, 80673, 188237, 564711, 994967, 2984901, 6964769, 20894307]

約数ペア:

[(1, 20894307), (3, 6964769), (7, 2984901), (21, 994967), (37, 564711), (111, 188237), (259, 80673), (777, 26891)]