639347422

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1985551}}^1$

素因数の和:1985583

約数の個数: 16

約数和(自身を含む): 1143677952

約数和(自身を除く): 504330530

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 1985551, 3971102, 13898857, 27797714, 45667673, 91335346, 319673711, 639347422]

約数ペア:

[(1, 639347422), (2, 319673711), (7, 91335346), (14, 45667673), (23, 27797714), (46, 13898857), (161, 3971102), (322, 1985551)]